Chinertown
Chinese Carbon Road Bikes => Road Bike Frames, Wheels & Components => Topic started by: joegal on July 28, 2025, 11:28:18 PM
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Howdy,
seems like Tantan/Seraph is releasing another heavily inspired replica frame.
This time, it is a obvious copy of the Factor Ostro VAM V2.
The only information I could find are a few pictures.
No info on geometry yet, no frontal view to see the hourglass headtube.
Weight of the painted frame (size medium or large, i guess) is 1123 g including UDH, FD mount AND headset bearings. So the bare frame might be quite a bit lighter.
Seems like tantan is having lots of success with selling fakes. Still no clue if they are the manufacturer of this frame.
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LoL ohhhh so this is the new frame TanTan wanted me to review instead of the X68.
EDIT: I have local buddies here racing at the Pro/Cat 1/A-Grade level using actual fake Factor Ostro with no issues. They just had to swap in a genuine Factor integrated cockpit, as the fake one was too flexy.
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This looks hella sexy, hope they can replicate the very narrow headtube without compomising on easy routing and safety.
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A bit heavy isn’t it ?
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🤣
Tan Tan aint shy!
Must be something Up woth these frame having no patents or something if they can just sell a frame like these 🤔
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They certainly don't seem interested in receiving any OEM business, which wouldn't make me confident in the quality of their product
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A bit heavy isn’t it ?
Ostro VAM is about 1kg too.
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Ostro vam frame is 900g according to Factor, I guess this frame is 1050g without the UDH and headset bearing. Pretty similar to the weight difference between a real SL8 and the X68 frame. Interested to see if the geometry is actually identical…
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They launched in the website http://tantancycling.com/index.php?_m=mod_product&_a=view&p_id=1199
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Just checked and bike is now on TanTan website:
http://tantancycling.com/index.php?_m=mod_product&_a=view&p_id=1199
Looks like geo is basically identical <58? The 58cm size starts to differ in chainstay length. Also claimed 30mm tire clearance which is odd.
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Interested to see what the price opens at?
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TT-X71:1set/499usd (include:frame/fork/seatpost/handlebar/spacer)
Headsets:1set/10USD
Thur axle:1pair/20USD
Above is the quotation of black matte.
Please kindly advise your shipping location, so that we can calculate freight for your reference.
PayPal payment,
handling fee is 5% of the total amount.
The maximum size is: 58CM.
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TT-X71:1set/499usd (include:frame/fork/seatpost/handlebar/spacer)
Headsets:1set/10USD
Thur axle:1pair/20USD
Above is the quotation of black matte.
Please kindly advise your shipping location, so that we can calculate freight for your reference.
PayPal payment,
handling fee is 5% of the total amount.
The maximum size is: 58CM.
Sent you a PM here! Do you havr WhatsApp?
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Sent you a PM here! Do you havr WhatsApp?
Oh sorry, I am not an employee.
You should contact +86 136 9093 8214
My post was just a copy paste whatsapp message i got from them.
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This frame has the same inconsistencies with the real thing that the Fauxtros on the counterfeit thread has. Seat stay junction and BB area are a slightly different shape. Fork dimensions and hose inlet are off.
However, the one thing that stood out to me is their UDH implementation. The pics aren't good, but this doesn't look like it's compatible with the direct mount road XPLR RDs. The RD hanger also doesn't appear to be able to rotate back, as the stop feature on the frame is positioned above the center axis UDH frame attachment interface. I kind of want someone to buy one to see if this is really the case, but if it were the case, your frame could quickly become a write-off.
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Oh sorry, I am not an employee.
You should contact +86 136 9093 8214
My post was just a copy paste whatsapp message i got from them.
Sorry about that. Much appreciated!!
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This frame has the same inconsistencies with the real thing that the Fauxtros on the counterfeit thread has. Seat stay junction and BB area are a slightly different shape. Fork dimensions and hose inlet are off.
However, the one thing that stood out to me is their UDH implementation. The pics aren't good, but this doesn't look like it's compatible with the direct mount road XPLR RDs. The RD hanger also doesn't appear to be able to rotate back, as the stop feature on the frame is positioned above the center axis UDH frame attachment interface. I kind of want someone to buy one to see if this is really the case, but if it were the case, your frame could quickly become a write-off.
There is a video of this frame as a complete bike on Instagram now using the Wheeltop Groupset. Wonder if you see this video can you give your opinion on your question/concern above? I am interested in your thoughts on this. I do not understand exactly what you are saying about the topic so will refrain from my thoughts.
Thanks for sharing yours concerns as this is a frame I am interested in.
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For the TanTan X65 it took almost half a year between announcement and the first painted frame pics appearing. This one is announced painted and a complete bike is shared within a week. Maybe a different marketing strategy, but given the similarities with the counterfeits, I feel like they might be buying this one in.
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There is a video of this frame as a complete bike on Instagram now using the Wheeltop Groupset. Wonder if you see this video can you give your opinion on your question/concern above? I am interested in your thoughts on this. I do not understand exactly what you are saying about the topic so will refrain from my thoughts.
Thanks for sharing yours concerns as this is a frame I am interested in.
See the attachments here. There are a few different types of UDH attachments. All of them allow for rotation and have a stop at two positions. First pic is this bike, it’s not a great photo but I noted the issue. Second is the closest reference I could find in the UDH documentation. Third is the GR201 and its UDH design, which is different, 4th is the reference for that type of design.
I find it pretty confusing that they would be using two different types of UDH but at least they arent inventing a new “mini UDH” like Cervelo and Factor did. Before ordering this frame, I would ask for a close up photo of the UDH / drive side dropout, and if possible, verify that it can rotate properly and meet UDH specs.
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See the attachments here. There are a few different types of UDH attachments. All of them allow for rotation and have a stop at two positions. First pic is this bike, it’s not a great photo but I noted the issue. Second is the closest reference I could find in the UDH documentation. Third is the GR201 and its UDH design, which is different, 4th is the reference for that type of design.
I find it pretty confusing that they would be using two different types of UDH but at least they arent inventing a new “mini UDH” like Cervelo and Factor did. Before ordering this frame, I would ask for a close up photo of the UDH / drive side dropout, and if possible, verify that it can rotate properly and meet UDH specs.
I’m a bit confused by this tbh and would like to understand more about your concern over the UDH. I have a Lynskey frame with UDH that is 100% working with SRAM direct mount (it had the new XPLR 13 speed mounted before I took it off to use on another bike), and with the UDH hanger on, it looks exactly like how the TanTan frame looks with the hangar. So I am curious how you can tell from just a picture whether the UDH works or not…
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I am not going to comment on Lynskey's implementation, and that pic is at an angle that hides the potential geometry of the stops anyway. I am also NOT saying the X71 is incompatible. I am saying that if I were buying this, I would want to check it before making a purchase.
Attached is a photo of the LTK266-D-SL I ordered. This is the exact implementation used on the TanTan GR201 and one that is very common on the lower-cost carbon frames from what I have seen. You can see the stop in this design.
Of course, there are other viable designs as shown in the reference I attached previously. My point was that the photo appears to show a design that doesn't match either previous designs used by TanTan or any of the references. That to me is cause for concern, particularly given the issues with the X68, etc.
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I am not going to comment on Lynskey's implementation, and that pic is at an angle that hides the potential geometry of the stops anyway. I am also NOT saying the X71 is incompatible. I am saying that if I were buying this, I would want to check it before making a purchase.
Attached is a photo of the LTK266-D-SL I ordered. This is the exact implementation used on the TanTan GR201 and one that is very common on the lower-cost carbon frames from what I have seen. You can see the stop in this design.
Of course, there are other viable designs as shown in the reference I attached previously. My point was that the photo appears to show a design that doesn't match either previous designs used by TanTan or any of the references. That to me is cause for concern, particularly given the issues with the X68, etc.
Understood. I would guess that the implementation is the "hangerless interface design variant 5" in your previous post. It doesn't have an obvious protruding stop that's visible. If I take off the hangar off my Lynskey, the dropout underneath shows that geometry. The issue is that when the hangar is attached, the hangar itself obscures the geometry of the dropout underneath (regardless of the angle of the picture).
If I'm not mistaken, TanTan does use this exact same implementation on their X67 frame. https://www.youtube.com/post/Ugkxi7ci86-YLfd12DqZgekY5cogUuvh04tV
Given the speculation that TanTan doesn't actually make some of these frames but are actually just reselling them from other makers of replica frames, I wouldn't be surprised by the different UDH implementations, which may explain why the GR201 implementation is different.
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Understood. I would guess that the implementation is the "hangerless interface design variant 5" in your previous post. It doesn't have an obvious protruding stop that's visible. If I take off the hangar off my Lynskey, the dropout underneath shows that geometry. The issue is that when the hangar is attached, the hangar itself obscures the geometry of the dropout underneath (regardless of the angle of the picture).
If I'm not mistaken, TanTan does use this exact same implementation on their X67 frame. https://www.youtube.com/post/Ugkxi7ci86-YLfd12DqZgekY5cogUuvh04tV
Given the speculation that TanTan doesn't actually make some of these frames but are actually just reselling them from other makers of replica frames, I wouldn't be surprised by the different UDH implementations, which may explain why the GR201 implementation is different.
This is an X67 and IDK maybe it works? Still looks really odd to me, but surely someone could confirm. I would still be asking this question before I bought the frame. Also, the brake mounts seem barely ovalized on these frames!
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This is an X67 and IDK maybe it works? Still looks really odd to me, but surely someone could confirm. I would still be asking this question before I bought the frame. Also, the brake mounts seem barely ovalized on these frames!
All this talk is way over my head. Are you saying that No groupset will work on that hanger or a specific groupset will not work with this type hanger. I plan to run Shimano.
Thanks for any help you can be.
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Frame only supports DI2 groupsets per TT Rep. In case anyone didn’t know that already.
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All this talk is way over my head. Are you saying that No groupset will work on that hanger or a specific groupset will not work with this type hanger. I plan to run Shimano.
Thanks for any help you can be.
Sorry, I should have led with that. I would primarily be concerned about the dropout being easily damaged in the event of a minor crash or other incident. Second, the RD would be more susceptible to damage.
I think incompatibility would be limited to SRAM's 1x13 groups. I don't think there are physical shape issues with a standard UDH hanger. You may encounter compatibility issues with UDH Shimano direct-mount type hangers or experience trouble with the B gap if the forward stop isn't in the correct position, but I don't see an obvious issue there.
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Just ordered this frame. I built up a TT-x68 frame at the beginning of the year and it has been great. Looking forward to adding this frame to the stable. I’ll post weights when I receive it, whenever that is.
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Wonder if they offer a 15mm setback post. 0mm is a big no no for myself
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Just ordered this frame. I built up a TT-x68 frame at the beginning of the year and it has been great. Looking forward to adding this frame to the stable. I’ll post weights when I receive it, whenever that is.
Really interested to see how it turns out! My next bike build is likely going to be either the X68 or this one... so hard to decide.
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just a question , why tantan and not this ? https://yohobike.com/product/2024-factor-ostro-vam-2-0-carbon-bike-frame-with-handlebar-disc-brake-crf04-2/
you can buy without the decals if it disturb you, supports wider tires, lighter, ceramic speed slt headset and 1:1.
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just a question , why tantan and not this ? https://yohobike.com/product/2024-factor-ostro-vam-2-0-carbon-bike-frame-with-handlebar-disc-brake-crf04-2/
you can buy without the decals if it disturb you, supports wider tires, lighter, ceramic speed slt headset and 1:1.
Tantan is a better known company.
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Tantan is a better known company.
Better known but not for good reasons 😁
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just a question , why tantan and not this ?
The question is interesting cause it poses the companies at the same level in term of moral. This points directly to Serge post on the Vendor section of this forum.
Tantan is better known, though yoho seems quite known too according to the all the recent mentions on this forum no ?
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I pulled the trigger yesterday too. There was some special price on AliExpress that I could not pass on. I picked the chameleon color, but am not too sure. Any suggestions on nice paint job that tantan can do?
It's also weird that they sell the frameset without axles & headset bearings. I think they are the only seller that does that.
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I pulled the trigger yesterday too. There was some special price on AliExpress that I could not pass on. I picked the chameleon color, but am not too sure. Any suggestions on nice paint job that tantan can do?
It's also weird that they sell the frameset without axles & headset bearings. I think they are the only seller that does that.
Can you share the link from aliexpress?
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Headset bearings are not standard on the Ostro, so that's potentially some serious brain fuck. Owing to the steerer not being round and so on.
Not selling TA, given there's a million possible threads, pitches, lengths and so on, also a red flag.
Given there are plenty of people who've complained that they stripped the TA / frame when installing the TA, it could be a weasel way for tantan to be like "nooooo, it's your fauuuuuult, you used the wrong TA!".
Personally, i would run :) Market conventions exist for a reason. As you've noticed, EVERYBODY either includes these things, or gives you the option to buy these things when you buy the frame.
There's a link to order those exact things on the bottom of the page when you look at the frame. It is strange that they arent already included, but you can still buy them with the frame. And if anyone strips a thru axle thread, that is 100% their fault for over doing it.
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I pulled the trigger yesterday too. There was some special price on AliExpress that I could not pass on. I picked the chameleon color, but am not too sure. Any suggestions on nice paint job that tantan can do?
It's also weird that they sell the frameset without axles & headset bearings. I think they are the only seller that does that.
What was the special price? Seeing $552 right now on their aliexpress store here https://www.aliexpress.com/item/1005009622181437.html
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It was some kind of an "early bird" deal. Chameleon color was 503 usd + shipping.
That's right, you can buy the TA & bearings from them and that puts the responsability on them to provide correct parts. I am just surprised that you have to order on the side. As stated above, anyone that buys the frame will need them. To me it's equivalent to the RD hanger. It should always come with the frameset and anyone selling them in the side is just trying to display a lower price tag, but forcing you to buy extra parts that are needed anyway
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It was some kind of an "early bird" deal. Chameleon color was 503 usd + shipping.
That's right, you can buy the TA & bearings from them and that puts the responsability on them to provide correct parts. I am just surprised that you have to order on the side. As stated above, anyone that buys the frame will need them. To me it's equivalent to the RD hanger. It should always come with the frameset and anyone selling them in the side is just trying to display a lower price tag, but forcing you to buy extra parts that are needed anyway
insane deal!! 8)
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Anyone on this thread has received the frame?
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Im expecting it to take around 2 months. I ordered an x68 last year, and that was the timeline with christmas, and new years in there. This time around it should be late september/ early october when i receive it.
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They must have stock on the shelf. My frame is now being painted.
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They must have stock on the shelf. My frame is now being painted.
Did you do a custom paint job?
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Not custom no. I asked for blue/purple chameleon matte finish. I hope it will come out similar to luxter blue from Pinarello
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Anyone using this frame tried 32C tires? And also why does it say "only supports electronic gearshifting" and then "Both mechanical and DI2 can be used", what does that mean? ;D
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Anyone using this frame tried 32C tires? And also why does it say "only supports electronic gearshifting" and then "Both mechanical and DI2 can be used", what does that mean? ;D
I spoke with them and they told me electronic shifting only. No mechanical!
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Hi, new to the forum but lurker from a long time,
I recently bought the frame, was used to Seraph on aliexpress, went through spcycle, thrust, classic BXT (but through meinier) - and i forgot, a immense favorite, HYGGE (who sent a replacement fork after two years of warranty)
i'll document everything once received, will install eds tx later on.
What should I excpect to look at on the frame for defects? I never had issues, always good finish but it's a first with so much specific tubes.
Also I want to make a very much light build, to compensate for the weight of the frame, and i have a question that rep is so slow to answer (is he painting my frame himself? who knows)
what is the standard for axles, I can zoom in and find pitch for threads but no info on the other side if i want to order TI ones.
also maybe dumb question but is the seatpost the same as Factor originals? if i want to buy a "duh-rimo" to win 100g will it fit? i reckon i'll be one of the first ones to receive it but if anyone knows I'll be glad to order one quick.
thank you all for the infos you so gladly put on this website, that i am glad to now be part of
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Just picked up a size 56 with no paint (raw finish). Also requested a 380mm x 100mm integrated handlebar. Paid for the matte black version for about $510 USD shipped to Canada. $489 for the frame + $108 shipping - $90 coupon.
I was able to persuade the seller to also gift me a set of thru axels since it isnt painted.
Hope it arrives in good condition!
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Didn't see this is the same as one of the replica's sold by shady vendor x post here. Therefore this is my input. :-P
TanTan can't be taking serious anymore as a company, just another reseller. Placing them in the AirWolf camp.
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I pulled the trigger yesterday too. There was some special price on AliExpress that I could not pass on. I picked the chameleon color, but am not too sure. Any suggestions on nice paint job that tantan can do?
It's also weird that they sell the frameset without axles & headset bearings. I think they are the only seller that does that.
Just noticed that you also mentioned headset bearings...the listing on aliexpress says the headset is included - did you have to also order a headset?
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They told me the headset bearings were included with the x71. I ended up paying extra for the thru axles. So basically I should receive the frameset with everything.
Still waiting for frame to ship. They told me that the painter was away for a few days, delaying all orders.
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Question to my American Brethren who has recently ordered from TAN TAN, how much was shipping which I assumed included taxed and how did it go? any issue delays etc?
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Question to my American Brethren who has recently ordered from TAN TAN, how much was shipping which I assumed included taxed and how did it go? any issue delays etc?
If i recall correctly, it was about $180 all in. I believe that it increased $30 - $40 from when I ordered my x68 last november. This go around, I've also waited a month and heard absolutely zero from tantan. I did reach out to them and they are telling me my order isnt even confirmed, so I am not too happy with them right now.
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They also asked that I extend the shipping by 5 days again. They said it would ship before the end of the 5 days. Unless someone has been reading without raise their hand, it looks like I will be the first from the forum. I will gladly take pictures once I have it.
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Anyone tried to ride 32c Tires on this frame?
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Anyone tried to ride 32c Tires on this frame?
Like I said just above, I am pretty no one on this forum has received the frame yet.
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Anyone tried to ride 32c Tires on this frame?
im planning to run 32c tires gp5000 tires on 25mm internal width rims! Will update once I get the frame...if I actually get it ::)
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Has anyone who ordered a painted frame heard anything from TanTan? I asked them about their painter being out, hes apparently back in action, but I've gotten the run around regarding everything else. Not too happy with them right now and probably won't order anything else from them.
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My painted frame shipped 6 days ago. Still pending for the tracking number to pick up, but my frame was delayed by the painter being away. Picture I got from them attached.
Question for computer mount. The handlebar has a 3 holes design. First time I see that. Anyone knows of a mount that fits that design? Maybe they included one with the bar.
I
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My painted frame shipped 6 days ago. Still pending for the tracking number to pick up, but my frame was delayed by the painter being away. Picture I got from them attached.
Question for computer mount. The handlebar has a 3 holes design. First time I see that. Anyone knows of a mount that fits that design? Maybe they included one with the bar.
I
I asked for one to be included and they said they'll throw one in. I wouldn't know where to find a 3 holed computer mount otherwise and have had no luck finding one.
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See picture. The handlebar listing seems to come with the mount. Hopefully they don't screw around not including it with frameset.
Edit: I see it now in the picture they sent. It is included in my order.
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What BB are you guys getting for this frameset?
I didnt get confirmation from Tantan/Seraph, but presumably it is also a T47A with a shell of around 79mm. I'm personally looking at the Kactus T47A on aliexpress, but interested in other options :)
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What BB are you guys getting for this frameset?
I didnt get confirmation from Tantan/Seraph, but presumably it is also a T47A with a shell of around 79mm. I'm personally looking at the Kactus T47A on aliexpress, but interested in other options :)
I went for t47a ceramic from onirii, and a riro crankset i had laying around. I'll report the qfactor once mounted. Shipping says it's in europe
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Ztto DUB matched with Oniirii attack crank. That crank has been my go to for my recent builds.
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What BB are you guys getting for this frameset?
I didnt get confirmation from Tantan/Seraph, but presumably it is also a T47A with a shell of around 79mm. I'm personally looking at the Kactus T47A on aliexpress, but interested in other options :)
I had the Kactus T47A but the "ceramic" bearings started to make funny noises after about 800 km. I pressed them out and pressed in genuine enduro bearings and all is fine.
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FASTER anyone?? ;)
https://www.aliexpress.com/item/1005008969582269.html
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FASTER anyone?? ;)
https://www.aliexpress.com/item/1005008969582269.html
The "freedom" decal is truly hilarious! Must be targeting American customers
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FWIW there is an elite-level racer here in Chicago that has been using a replica Ostro VAM for the past two seasons. He races against the top crit teams in the country.
It's probably difficult to substantiate performance of the frame. I mean it doesn't seem to be holding him back. At the very least the frameset has been able to take abuse at the highest level.
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FWIW there is an elite-level racer here in Chicago that has been using a replica Ostro VAM for the past two seasons. He races against the top crit teams in the country.
It's probably difficult to substantiate performance of the frame. I mean it doesn't seem to be holding him back. At the very least the frameset has been able to take abuse at the highest level.
Which manufacturer? Do you know?
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Looks like my frame is getting delivered today!!! Will post photos as soon as I get it :)
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@Pupilorutero Here are photos of tire clearance with the 32c tires (Continental Grand sport race on 28mm external width rims). Its pretty tight, but I think its doable for really clean road conditions. about 3-4mm to my eye.
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Alright, just got it unboxed and threw on my wheelset for some photos.
Frame size is 56. 50mm deep rims with exterior rim width of 28mm and 32c Continental Grand Sport tires (GP5k are on the way).
Front fork is 486g
Frame is 1135g
Seatpost is 225g
Headset + spacers 154g
Handlebars (42cm x 110mm? with bike computer mount) 456g
Frame, fork, and seatpost are completely unpainted.
First impressions: The frame itself looks pretty good. Its not perfect, but I cant complain given how much I paid ($500 USD shipped).
Additional notes:
- The frame itself seems pretty solid and well formed. Cointest sounded fine throughout. I'll be getting an endoscope tomorrow so ill take some photos of the inside later.
- Some surface inperfections, the seatpost area is a bit warped, and the rear thruaxel area is pretty gnarly looking. Fingers crossed, these are all cosmetic.
- Pleasently suprised to see a di2 battery mount at the bottom of the frame, like a real Factor Ostro VAM.
- Headset is pretty different than an actual Factor Ostro VAM 2.0. I think they sent me a "generic" headset package because some of the parts seem to be completely incompatible with this bike.
- Included in the packaging was a computer mount for the handlebars.
- They did send me a pair of thruaxels as agreed since I got the frame unpainted, but they sent me the wrong handlebar size (42cm wide :-\). Hopefully they can send me a new pair in the right size.
Let me know if there are any other photos you would like me to take!
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Alright, just got it unboxed and threw on my wheelset for some photos.
Frame size is 56. 50mm deep rims with exterior rim width of 28mm and 32c Continental Grand Sport tires (GP5k are on the way).
First impressions: The frame itself looks pretty good. Its not perfect, but I cant complain given how much I paid ($500 USD shipped).
Additional notes:
- The frame itself seems pretty solid and well formed. Cointest sounded fine throughout. I'll be getting an endoscope tomorrow so ill take some photos of the inside later.
- Some surface inperfections, the seatpost area is a bit warped, and the rear thruaxel area is pretty gnarly looking. Fingers crossed, these are all cosmetic.
- Pleasently suprised to see a di2 battery mount at the bottom of the frame, like a real Factor Ostro VAM.
- Headset is pretty different than an actual Factor Ostro VAM 2.0. I think they sent me a "generic" headset package because some of the parts seem to be completely incompatible with this bike.
- Included in the packaging was a computer mount for the handlebars.
- They did send me a pair of thruaxels as agreed since I got the frame unpainted, but they sent me the wrong handlebar size (42cm wide :-\). Hopefully they can send me a new pair in the right size.
I'll weigh the parts later today. let me know if there are any other photos you would like me to take!
Why did you order it without any paint? Are you going to do your own custom paint job?
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Why did you order it without any paint? Are you going to do your own custom paint job?
Yes, I will be doing a custom paint job. but also because its easier to see the quality of the frame itself.
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@Pupilorutero Here are photos of tire clearance with the 32c tires (Continental Grand sport race on 28mm external width rims). Its pretty tight, but I think its doable for really clean road conditions. about 3-4mm to my eye.
Tight indeed... what is the actual measured width of the tires?
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Tight indeed... what is the actual measured width of the tires?
Tires measure about 35mm. I might size down to 30c instead ;).
Also I cant find my scale today, so ill weigh it out tomorrow when I also mess around with the endoscope!
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Hiya and thank you for all the pics it's a delight!
Can you send us a pic of the thru axles and measurments markings?
It's so hard to find 1.0 pitch thru axles i don't want to mess it up!
What do you mean about bearings? The ones they give are the wrong size or do they fit the frame?
Can i have the measurments of the two set screws at the back?
Thank you a lot for your pictures, can't wait to have mine, the clearance on your tyres is so nice and tight!
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Alright sorry for the wait, been busy the past few days.
Here are some photos of the headset for the frame. I am not a huge fan of the way it works, it seems like a bit of a bodge, but I suppose it works.
The two headset bearings supplied with the bike appear to be identical. And they both slot into the bike frame snuggly.
In the first photo you can see that they supply 3 "washers" that center the fork with the top bearing. Only one of the "washers" seem to work with this frame. The other two either inadequately center the fork, or they leave too much of a gap when you assemble the spacer. See the second picture to see the different profiles of the "washers" (if someone knows the proper term please let me know :) ).
As you can see in the third photo, if you dont install the "washer", the fork is functionally ignoring the top bearing.
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@Vincent57
Here are photos of the Thru Axel and seat-post clamp screws with some measurements. Rear TA is marked, but the front TA has no markings. Total weight of them are 58g
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Bruh, all we want are photos on the inside of the frame haha
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@Serge_K Here are photos of the inside, from the headset and BB areas. Also are some photos with my endoscope from the BB area. The walls of the inside seem shockingly smooth.
The seattube is a bit weird. There seems to be a chunk of carbon blocking it off (see last photo).
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Thanks for posting all this info Joey!
The headset is pretty standard no? It’s how all internally routed headsets work, you have a c-shaped spacer that centers the fork and also provides room for cables. Sometimes you have to try a couple different c - spacers or play with additional shims/spacers on top for a perfect fit. Of course for a complete frame set they should provide you with the right one for a perfect fit, so maybe the handlebar wasn’t designed specifically for this frame.
Weight seems a bit porky considering it’s an unpainted frame lol, so all other variations will be heavier still :'(
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It would be great to hear from others if their TT X71 frameset also have the seat tube blocked off like mine. I find it so peculiar. I cant think of a reason for it.
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Mine is in transit and has not moved for 3 days. I think it's because of the storm in Asia. Will send photos once received.
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I pulled the trigger, ordered in raw finish too. Lets see how long it takes
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I messaged Tan Tan about ordering one in raw finish but have yet receive any reply. Does anyone have a recommendation for getting in touch with them?
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I messaged Tan Tan about ordering one in raw finish but have yet receive any reply. Does anyone have a recommendation for getting in touch with them?
Since I ordered through Aliexpress, I messaged them through the Aliexpress store (Seraph). They arent very good at communication tbh. Somtimes they ignore parts of my question, or even straight up ghost me.
Im honestly dreading the conversation to try to figure out the issue of them sending the wrong handlebars. If anyone has experience with Tantan/Seraph when they sent the wrong item, please reach out!
Also for what its worth, I think it will be much more cost effective to get a painted frame from Seraph. Getting it custom painted or even DIY painting will be pretty expensive. And riding it unpainted is not a good idea. UV can kill the resin within the frame. I am primarily doing it because I want a fun art project ;D
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Im aware of the paint costs, but i dont think tantan can replicate what i want to paint, so im doing it locally.
Here are some references of my idea.
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Since I ordered through Aliexpress, I messaged them through the Aliexpress store (Seraph). They arent very good at communication tbh. Somtimes they ignore parts of my question, or even straight up ghost me.
Im honestly dreading the conversation to try to figure out the issue of them sending the wrong handlebars. If anyone has experience with Tantan/Seraph when they sent the wrong item, please reach out!
Also for what its worth, I think it will be much more cost effective to get a painted frame from Seraph. Getting it custom painted or even DIY painting will be pretty expensive. And riding it unpainted is not a good idea. UV can kill the resin within the frame. I am primarily doing it because I want a fun art project ;D
i have used the email info@tantancycling.com for two orders with replyes usualy inside of 24h.
One order was missing a headset and they sent it after 2 emails, so till now my experience has been quite positive.
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i have used the email info@tantancycling.com for two orders with replyes usualy inside of 24h.
One order was missing a headset and they sent it after 2 emails, so till now my experience has been quite positive.
Hmm, I seem to be in a bit of a dilemma. On one hand I could just dispute the order through Aliexpress - probably securing a partial refund for the handlebars. On the other hand I could reach out and ask them to send out another pair of handlebars, but risk them ghosting me.
Actually after writing this out - I think i'll probably just dispute them for a partial refund and then pick up another handlebar set somewhere else. ;D
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Did you decide if you contact them vs dispute? I ordered 400x120. I will make sure to measure the bar once I have it.
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Did you decide if you contact them vs dispute? I ordered 400x120. I will make sure to measure the bar once I have it.
Yep, I decided to just opened up a dispute on Aliexpress. I had such a bad time communicating with Seraph, I didnt want to bother.
Funny enough, after I submitted the dispute - Seraph immediately reached out and tried to settle for $20 USD ::). Kind of insulting lol. Ill let Aliexpress step in and roll the dice with the dispute outcome.
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Does anyone know what the maximal tyre size is?
Acording to the webpage its 30? But the real one has 32.
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Does anyone know what the maximal tyre size is?
Acording to the webpage its 30? But the real one has 32.
Read the thread
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the guy who just go it, have it with a 32inch but actual measure is 35inch 3mm gap, so maybe 32inch with good inner width might fit.
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Hi,
I come to you again regarding my experience ordering from Seraph Official Store.
It has not been a pleasant exchange so far and I wanted to untangle the net with the seller but as customer protection and return window is closing, I'm choosing to speak, and see.
I ordered, on the 18 august, the frame in black, 49cm.
As soon as i made the order, asked for "can i change to size 52 and 110 380mm handlebar?" and seller said yes.
Seller also asked to extend shipping time, for production reasons, wich I already did because I know how this works.
on 09/01, he sent me tracking link.
In the meantime, I asked for thru axle size, wich he never really gave me, only products link and "i'll give you later" (why I asked it to Joey)
I received the frame the same day as Joey.
Mounted the bike on the same day. took me around 2 hours to build it properly (no bar tape yet, few adjustments.) took it for a ride and everything felt great (what a beast).
BUT
The handlebars 110-380 (correct size) are so flimsy it's incredible. I push hella watts and this is NOT a viable option, safe too. the GPS mount is so feeble I can see the GPS bending in excess of 1.5cm down when i take speed bumps. That' a real no-no. The D-shaped steer tube is flexy too, so that makes the handlebar bend extremely in the front. I AM SCARED SHITLESS when going fast.
It has something to do with the fact that my position changed and went from ltwoo with great hand retention to Wheeltop, wich has less hand retention.
All of this can be mitigated with the fitting of a new HB wich was always assumed right of the bat.
BUT front tube is NOT the same as factor original (it's thicker) so... this issue is for later tbh
Major issue is:
FRAME'S GOOFY AF
I mean, I'm no stranger to defects on frame and always thought QC was a thing BUT IT IS NOT. Just look at the pictures and laugh at me. I won't even explain how much wheels, driveside change, measurments went up to always get the same conclusion.
Pictures will talk for themselves. Seller thought 30$ refund was safe. I work as a bike mechanic in Decathlon, that's an instant refund.
I'll let you discuss.
Thank you for your reading.
Also I don't recommend buying it, BUT it's perfectly well made inside as well as Joey's, paint is great, everything outside the wheel fit snug, UHD is perfect, T47A assymetric is NEEDED.
for those who don't get it back wheel is sideways
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Didn't you just switch the endcaps of your rear wheel?
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Hi,
I come to you again regarding my experience ordering from Seraph Official Store.
It has not been a pleasant exchange so far and I wanted to untangle the net with the seller but as customer protection and return window is closing, I'm choosing to speak, and see.
I ordered, on the 18 august, the frame in black, 49cm.
As soon as i made the order, asked for "can i change to size 52 and 110 380mm handlebar?" and seller said yes.
Seller also asked to extend shipping time, for production reasons, wich I already did because I know how this works.
on 09/01, he sent me tracking link.
In the meantime, I asked for thru axle size, wich he never really gave me, only products link and "i'll give you later" (why I asked it to Joey)
I received the frame the same day as Joey.
Mounted the bike on the same day. took me around 2 hours to build it properly (no bar tape yet, few adjustments.) took it for a ride and everything felt great (what a beast).
BUT
The handlebars 110-380 (correct size) are so flimsy it's incredible. I push hella watts and this is NOT a viable option, safe too. the GPS mount is so feeble I can see the GPS bending in excess of 1.5cm down when i take speed bumps. That' a real no-no. The D-shaped steer tube is flexy too, so that makes the handlebar bend extremely in the front. I AM SCARED SHITLESS when going fast.
It has something to do with the fact that my position changed and went from ltwoo with great hand retention to Wheeltop, wich has less hand retention.
All of this can be mitigated with the fitting of a new HB wich was always assumed right of the bat.
BUT front tube is NOT the same as factor original (it's thicker) so... this issue is for later tbh
Major issue is:
FRAME'S GOOFY AF
I mean, I'm no stranger to defects on frame and always thought QC was a thing BUT IT IS NOT. Just look at the pictures and laugh at me. I won't even explain how much wheels, driveside change, measurments went up to always get the same conclusion.
Pictures will talk for themselves. Seller thought 30$ refund was safe. I work as a bike mechanic in Decathlon, that's an instant refund.
I'll let you discuss.
Thank you for your reading.
Also I don't recommend buying it, BUT it's perfectly well made inside as well as Joey's, paint is great, everything outside the wheel fit snug, UHD is perfect, T47A assymetric is NEEDED.
for those who don't get it back wheel is sideways
Can you share a picture of the headtube? Prefereably front on so that we can see how thin it is in comparison to the real frame.
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Hi,
I come to you again regarding my experience ordering from Seraph Official Store.
It has not been a pleasant exchange so far and I wanted to untangle the net with the seller but as customer protection and return window is closing, I'm choosing to speak, and see.
I ordered, on the 18 august, the frame in black, 49cm.
As soon as i made the order, asked for "can i change to size 52 and 110 380mm handlebar?" and seller said yes.
Seller also asked to extend shipping time, for production reasons, wich I already did because I know how this works.
on 09/01, he sent me tracking link.
In the meantime, I asked for thru axle size, wich he never really gave me, only products link and "i'll give you later" (why I asked it to Joey)
I received the frame the same day as Joey.
Mounted the bike on the same day. took me around 2 hours to build it properly (no bar tape yet, few adjustments.) took it for a ride and everything felt great (what a beast).
BUT
The handlebars 110-380 (correct size) are so flimsy it's incredible. I push hella watts and this is NOT a viable option, safe too. the GPS mount is so feeble I can see the GPS bending in excess of 1.5cm down when i take speed bumps. That' a real no-no. The D-shaped steer tube is flexy too, so that makes the handlebar bend extremely in the front. I AM SCARED SHITLESS when going fast.
It has something to do with the fact that my position changed and went from ltwoo with great hand retention to Wheeltop, wich has less hand retention.
All of this can be mitigated with the fitting of a new HB wich was always assumed right of the bat.
BUT front tube is NOT the same as factor original (it's thicker) so... this issue is for later tbh
Major issue is:
FRAME'S GOOFY AF
I mean, I'm no stranger to defects on frame and always thought QC was a thing BUT IT IS NOT. Just look at the pictures and laugh at me. I won't even explain how much wheels, driveside change, measurments went up to always get the same conclusion.
Pictures will talk for themselves. Seller thought 30$ refund was safe. I work as a bike mechanic in Decathlon, that's an instant refund.
I'll let you discuss.
Thank you for your reading.
Also I don't recommend buying it, BUT it's perfectly well made inside as well as Joey's, paint is great, everything outside the wheel fit snug, UHD is perfect, T47A assymetric is NEEDED.
for those who don't get it back wheel is sideways
Did you felt any weird ride feel with the Wheel offset like that?. is it noticeable? aside from the handlebar do you notice any other weird feeling?
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Didn't you just switch the endcaps of your rear wheel?
Thanks for the reply and for the suggestion!
I've been through 3 wheels (proven ones) and switched from driveside to disk side. All wheels have a good center (checked with "parapluie" tool (in french))
The wheel (and only i can see it, no camera even my 300mm zoom can capture it)
Is tilted. It's doing an "x" with the front one.
Thanks again, but no dice sadly ;D
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what was Seraph Opinion about your issue?
i was really considering this frame, im between this one and the Spcycle R065.
but now im unsure about this one. what is the Experience from the other guys who received it? do you have the same issue?
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Thanks for the reply and for the suggestion!
I've been through 3 wheels (proven ones) and switched from driveside to disk side. All wheels have a good center (checked with "parapluie" tool (in french))
The wheel (and only i can see it, no camera even my 300mm zoom can capture it)
Is tilted. It's doing an "x" with the front one.
Thanks again, but no dice sadly ;D
Could there he a problem with the UDH?
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Heya!
I'll do picture time tomorrow
No issues with udh, replaced it with some I had, same old issue.
With some basic trigonometry I determined that i needed to displace hole 0.9mm further up.
Gravity will keep the wheel in place, although i have to fill the ovalized space for rigidity.
Everything is back in place straight et than ever. UDH hole was too low. Tolerance was over the moon. Hambini would've cried.
Thanks for ideas and suggestions.
Waiting for Seraph reply, holidays incoming.
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Not entirely sure if I understand the issue perfectly, but here is a photo of my frame with a laser level. I am not seeing too much deviation.
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Also, re:handlebar dispute.
Seraph on Aliexpress offered me a $20 refund for the wrong handlebar, I declined and said to go through the Aliexpress dispute process...to which they graciously bumped up their offer to $30. What a deal!! /s
Aliexpress ended up offering me a 20% partial refund as a dispute solution (~$120 USD). I tried to ask for more, but they seemed to have misinterpreted what I said and just refunded me the 20% lol. I might push some more later, but at least its enough to buy a basic set of handlebars. Mind you, I have spent thousands of dollars on Aliexpress with few disputes, so maybe they are more lenient for me. I've heard of horror stories where people dont get anything in the dispute. Im just sharing my experience with you guys.
For prospective buyers, be ready for lots of communication headaches ;D. I HIGHLY RECOMMEND buying from Aliexpress for some extra customer protection and use Paypal (Seraph doesnt get the money until Aliexpress marks the order as complete). Oh, and record the full unboxing on video (clearly show the shipping label in the video). That will be extremely useful for dispute proof.
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I am not sure I am looking forward at receiving the frame anymore 😅. Still has not moved for the last 8 days.
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My TanTan x68 frameset just started to move again today after 16 days of silence. Finally arrived in the USA.
Not sure which shipping method you chose. But my stuff is coming China by boat. The last order took like 5 weeks. But I also didn't pay tariffs.
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@Benbenben you should use tracking from http://120.24.110.114:8380/WebTrack see if results are different, it should be
@Joey sure am happy you didn't get my issue, and I really think 120$ is okay, you'll need to add around 30$ to get good handlebars and maybe 3d print some adapter. I'm a professional painter, don't hesitate to ask for recommandations on what to do so you don't rocket your budget
@Pupilorutero Handling was weird. At first I tried to tell me that the issue was cosmetic, if not aero, but then i went on making slalom on a parking and really, placebo or not the machine did not turn the same at all!!! I am maybe exagerating but I felt really weird, I tested it this morning and it's gone for good (could be placebo again)
@OlHag Cyclismo you want measures or pics? can do both
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My TanTan x68 frameset just started to move again today after 16 days of silence. Finally arrived in the USA.
Not sure which shipping method you chose. But my stuff is coming China by boat. The last order took like 5 weeks. But I also didn't pay tariffs.
EMS is the shipping method. Usually, all my items from Aliexpress, including framsets from other sellers & wheelsets, are coming to Canada from the air.
So it seems the provided handlebar is the bottleneck for tt-x71. If not safe at all, I am wondering if there is a way to get partial refund with AliExpress on basis that the bar is not safe.
I would like to avoid building the bike with that bar if I already know it's trash
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By my standards it is not but I always buy aftermarket stiffness
The bar is so thin (aero if you put it that way) that even in 38cm lowest they could offer, it bends too much. I do not have the means to do a scientific test but I can provide a video?
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Coming back on the BB. Can someone explain why t47a is needed? I bought a std T47 DUB. It's the first time I see someone mention assymetric is needed. Also no mention from tantan (not surprised by that though). I am assuming this is a clearance issue, but where?
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By my standards it is not but I always buy aftermarket stiffness
The bar is so thin (aero if you put it that way) that even in 38cm lowest they could offer, it bends too much. I do not have the means to do a scientific test but I can provide a video?
. @Vincent57 I was planning to get this frame set, but without handlebars and seatpost. As you have the bike in flesh, do you think a regular integrated cockpit would work with the steerertube? And is the seatpost the same as ostro vam 2.? I was looking at some aftermarket seatpost instead of the one that tantan provide. Do you haopen to know what width are the axles and what pitch is used for the thread. Thank you for taking the time to reply.
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Coming back on the BB. Can someone explain why t47a is needed? I bought a std T47 DUB. It's the first time I see someone mention assymetric is needed. Also no mention from tantan (not surprised by that though). I am assuming this is a clearance issue, but where?
Depends on the shell width? If you're going to mount a T47i BB on a 77mm wide (meant for T47a bb's) then the external width with the BB mounted will be incorrect. It's going to shift the driveside outboard by about 9mm if I'm not mistaken.
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Depends on the shell width? If you're going to mount a T47i BB on a 77mm wide (meant for T47a bb's) then the external width with the BB mounted will be incorrect. It's going to shift the driveside outboard by about 9mm if I'm not mistaken.
Ok, got it. Sounds like I needed to do a bit more research on t47 BB. So TT x71 has a 77mm shell. Then, I need to buy a t47a and build another bike because I have an extra t47i now 😜
Edit: most likely will go with Kactus t47a ceramic
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How are is everyone going about payment. They recommended PayPal but I've been hacked recently through PayPal and now I am hesitant to go that route. I'm wanting to pull the trigger on a complete x71 from tantan.
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Ok, got it. Sounds like I needed to do a bit more research on t47 BB. So TT x71 has a 77mm shell. Then, I need to buy a t47a and build another bike because I have an extra t47i now 😜
Edit: most likely will go with Kactus t47a ceramic
https://www.aliexpress.com/item/1005008164067923.html
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I am getting a ZTTO t47 2479 bottom bracket (should arrive in the next few days). Paid like $10 USD on Aliexpress (https://www.aliexpress.com/item/1005005842678547.html).
My understanding is that it fits 79mm shell. It might be 2 mm too wide, no? TT X71 should be 77mm. The inner plastic sleeve could be removed, but not the best.
Let us know how it fits!
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My understanding is that it fits 79mm shell. It might be 2 mm too wide, no? TT X71 should be 77mm. The inner plastic sleeve could be removed, but not the best.
Let us know how it fits!
Just got the ZTTO 2479 BB today, and im actually shocked at the quality of it :). Looks to be solid CNC'd metal, very nice finish. Alot more premium than what the $10 price tag would suggest.
Fits the TT-X71 frame fine. I measured the ZTTO BB's minimum distance to be 76.5mm. When the BB is installed in the frame, I can still feel some play in the cup, so it is not interfering with the frame's BB shell.
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Tantan confirmed it's coming to Canada by air. Now 15 days since last update. Tantan keeps telling to "wait for more time". Bought the frame Aug 4th, shipped Sept 13th. Still has not left China it looks like.
I was hoping to ride the bike this season, looks like it will be a 2026 bike.
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Tantan confirmed it's coming to Canada by air. Now 15 days since last update. Tantan keeps telling to "wait for more time". Bought the frame Aug 4th, shipped Sept 13th. Still has not left China it looks like.
I was hoping to ride the bike this season, looks like it will be a 2026 bike.
they had quite a heavy storm in China which delayed a lot of packages, especially larger ones (I've also bought a wheelset a few weeks ago which hasn't left China yet)
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Has anyone purchased a complete bike from tantan? How was shipping? Packaged well?
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I received the frame. Not much to report in addition of what was already said here.
One question. Can you confirm that you all received an headset cover that does not physically connects with the c ring? Not that it's a major concern since I believe the pressure should be enough to make the c ring follow the movement of the bar. Just surprised that it does not have a notch since the c ring does.
Let me know if any questions on the frame I got. Size 58 cm painted. 1140gr.
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I received the frame. Not much to report in addition of what was already said here.
One question. Can you confirm that you all received an headset cover that does not physically connects with the c ring? Not that it's a major concern since I believe the pressure should be enough to make the c ring follow the movement of the bar. Just surprised that it does not have a notch since the c ring does.
Let me know if any questions on the frame I got. Size 58 cm painted. 1140gr.
Re your question on headset+c ring: My c ring just sits directly ontop of the headset bearing. it does not "connect" in any way, it just sits there.
Questions for you:
- Have you been able to check down the seat tube of your frame? I'm reattaching a photo I made on pg 6 of this thread. My frame has the seat tube blocked off about 8 inches down.
- I'm surprised that your frame is basically the same weight as mine (even though mine is unpainted and its a size 56). Could you also share the weight of your fork and seatpost?
- It would be great to see the paint job you got :)
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Heya!
I'll do picture time tomorrow
No issues with udh, replaced it with some I had, same old issue.
With some basic trigonometry I determined that i needed to displace hole 0.9mm further up.
Gravity will keep the wheel in place, although i have to fill the ovalized space for rigidity.
Everything is back in place straight et than ever. UDH hole was too low. Tolerance was over the moon. Hambini would've cried.
Thanks for ideas and suggestions.
Waiting for Seraph reply, holidays incoming.
Can you share pics of how you actually solved this issue? :)
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@joey, I won't be able to take weights of fork & seatpost. Bike is partially built. I will take a look for the seat tube.
I also received wrong size of HB. I am disputing at the moment via AliExpress because they have offered to return everything. Well I started the build & destroyed the box.
Can I ask how you reached a partial refund?
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@joey, I won't be able to take weights of fork & seatpost. Bike is partially built. I will take a look for the seat tube.
I also received wrong size of HB. I am disputing at the moment via AliExpress because they have offered to return everything. Well I started the build & destroyed the box.
Can I ask how you reached a partial refund?
looking HYPE! I opened a dispute by messaging Aliexpress live customer support (first connected with the EVA chatbot, then requested an agent to chat with). I told them I got the wrong handlebars. The agent then opened up a dispute on my behalf (with photos I sent them) with a request for a full refund lol. Aliexpress then "solved" the dispute with a 20% partial refund ~120 USD.
It sounds like you already opened an order dispute, but I think you could still try contacting Aliexpress live customer support.
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Has anyone actually ridden the thing yet?
How does it feel? Stiff etc?
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I looked at the seat tube, nothing blocking the path on my frame.
Just updating on the dispute. Tantan keeps proposing to return the whole frameset even though I explained that I started the build already and don't have all the packaging & big box to return the frameset. There is no way I am going to buy a frameset box & foam to return everything. The fork tube is even cut to my size.
Heavily disappointed by TanTan on the communications through the whole transaction and now the way they handle the wrong size handlebar & dispute is just wrong. If not ghosting my messages, they were just being rude. They took pictures that I provided to convince aliex that I was actually trying to scam them even if I told them that I measured the handlebar when I was building the bike. They actually called me a scammer during the dispute.
I am trying to escalate that to AliExpress since the dispute ended up with final resolution of returning the whole frameset as well based on misunderstanding from Ali I think.
They also painted the bike glossy even if I asked for matte finish. They agreed and said ok to that. 6 days after the shipping of frame, they finally provided pictures of the frameset(I asked them when ordering to send pictures before shipping) & again proposed to cancel the whole order. After waiting 2 months for frame shipping, that did not seem acceptable since I had all the parts waiting for the build and wanted to ride the bike before season ends in Canada. I ended up threatening them to use this forum to complain and they offered ridiculous 25 usd refund(free thru axles), which I accepted since it was either that or order another frameset from other seller with even more delaying my bike build.
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I looked at the seat tube, nothing blocking the path on my frame.
Just updating on the dispute. Tantan keeps proposing to return the whole frameset even though I explained that I started the build already and don't have all the packaging & big box to return the frameset. There is no way I am going to buy a frameset box & foam to return everything. The fork tube is even cut to my size.
Heavily disappointed by TanTan on the communications through the whole transaction and now the way they handle the wrong size handlebar & dispute is just wrong. If not ghosting my messages, they were just being rude. They took pictures that I provided to convince aliex that I was actually trying to scam them even if I told them that I measured the handlebar when I was building the bike. They actually called me a scammer during the dispute.
I am trying to escalate that to AliExpress since the dispute ended up with final resolution of returning the whole frameset as well based on misunderstanding from Ali I think.
They also painted the bike glossy even if I asked for matte finish. They agreed and said ok to that. 6 days after the shipping of frame, they finally provided pictures of the frameset(I asked them when ordering to send pictures before shipping) & again proposed to cancel the whole order. After waiting 2 months for frame shipping, that did not seem acceptable since I had all the parts waiting for the build and wanted to ride the bike before season ends in Canada. I ended up threatening them to use this forum to complain and they offered ridiculous 25 usd refund(free thru axles), which I accepted since it was either that or order another frameset from other seller with even more delaying my bike build.
Sorry to hear about your experience, but tbh it doesnt really surprise me. My experience in communicating with TanTan was like pulling teeth.
When you say nothing blocking the path, does that mean you can see the bottom bracket from the seattube? I am wondering if I should try to drill out that section of my frame. I really dont know how it exists on my bike. I thought it was EPS moulded 🙃
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Yes, I can see the BB area looking from the seat tube.
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Pleased to say I finally received the frame I ordered way back at the beginning of August. I am still in the process of finishing the build, but it is complete enough for the trainer. I'll upload pics when its fully built.
Initial thoughts: Damn did it take absolutely forever to get. Good communication throughout the process, they told me they painted the wrong size and "hurried" to paint my size. That added a few extra weeks. Packaged well, nothing missing or damaged. The seatpost hole that others have mentioned is blocked off, and there is no access to the bottom bracket area via the seatpost tube. The brake mounts were horrendous and I did not even attempt to mount the calipers, so I had my LBS face the mounts. Not a fan of the way the stem looks or the stem cover, but they look alright from 10 feet away. The stem cover is fragile and I've already snapped one of the little plastic clips. No real issues with anything other than needing to face the brake mounts, and everything else went together like normal.
The Build: x71 Frame (54) - YS775 Gloss - 7.3kg - $3350ish USD
1x Shimano Ultegra R8100
38/120 bars from Seraph
CRW 50/55 Wheelset in 25mm GP5000 Tubeless
Buy a T47A BB.
Bought everything from Aliexpress, Ebay or Facebook, excluding the frameset.
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Curious did you use a t47A BB or regular t47? if the latter, no shifting or install issues with the cranks?
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Curious did you use a t47A BB or regular t47? if the latter, no shifting or install issues with the cranks?
I used a t47i with some spacers, but a t47a is the right move for this frame. At some point I will get a t47a to swap out.
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The seatpost hole that others have mentioned is blocked off, and there is no access to the bottom bracket area via the seatpost tube.
:o Very surprised that your frame also has the seatpost hole blocked off.
I assumed my frame was an one-off repair that they didnt want to write off. Assuming the frame is EPS moulded, I couldnt find a reason for excess resin in that area.
But now that your frame also has a blockage - my working theory is perhaps the blockage is just how they joined the seatstays to the seattube. Would you be able to take a photo of what your seat tube blockage it looks like?
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Finished the build finally. No real complaints after a few rides, just the stem cover being a cheap POS. Garmin mount is sturdy, and I’m able to use a regular garmin radar mount.
Brake mounts needed facing right out of the box.
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Got my frame, super unhappy with it tbh. Brake mounts horrendous is still to good, but honestly not that much of an issue.
Seat tube is not fully blocked, but there's a kind of blockage to the seatpost, so you can't fully insert the seatpost.
Bigger issue. A freaking hole in the right chainstay. Will wait how TanTan/Seraph and AliX will handle this.. To me the frame is a total damage..
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Got my frame, super unhappy with it tbh. Brake mounts horrendous is still to good, but honestly not that much of an issue.
Seat tube is not fully blocked, but there's a kind of blockage to the seatpost, so you can't fully insert the seatpost.
Bigger issue. A freaking hole in the right chainstay. Will wait how TanTan/Seraph and AliX will handle this.. To me the frame is a total damage..
Definitely not safe to drive, pls let us know how they handle this issue
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Definitely not safe to drive, pls let us know how they handle this issue
I'll keep you up to date, their first offer was sending the frame back and getting my money (not acceptable as the frame is now more expensive) or a 100USD refund.. For a total damage a bit less in my eyes...
Acceptable to me would be getting a replacement frame for sending the other frame back.
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Damn!! this is absolute horror to receive a frame like this, hope it gets sorted
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Damn!! this is absolute horror to receive a frame like this, hope it gets sorted
They said they arrange a replacement frame for me, but due to Chinese New year, it'll take some time. But that's totally fine. Wouldn't be any different here in Germany over Christmas and New Year.
I'll keep you updated on when the frame arrives
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Does someone knows if the weight of this TT-X71 is similar to the one sold by Yohobike ?
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has anyone found a replacement for the included Garmin mount? it seems to be quite flexy
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Has anyone installed an Ltwoo er kit into the frame? It seems the spacing is a bit short on the di2 holder when mounting the Ltwoo battery. The last 7mm is a no go.
Any solutions, or should I just pack this into the downtube?
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Hi here to share my ecperience with a complete bike from tantan/seraph as I havent found any on this platform so far.
I bought this one: https://www.seraphbikes.com/Carbon-Fiber-24-Speed-Aero-Road-Bike-TT-X71-Wheeltop-Di2-groupset-Carbon-Spoke-wheelset-With-700X30C-Tire-p6829310.html
directly from seraph site with paypal.
Communication was over whatsapp, quite good sometimes i had to ask multiple times when i asked multiple questions just one was answered but overall good.
First contact was 20.3. I wanted it with ltwoo but just went with regular wheeltop
order placet 26.3. The bike was in stock on the website but the wheelset still neded to be made (he said shipping in 15-25 days)
I got the QC Photos/shpping number on 28.4.
arrived at local carrier in germany on the 15.5. and at my door at 16.5.
So longer than expextet but still okish i guess.
Product came packed really nice no worries there, Casette not installed, handlebar dangling on the lines. (see pictures)
I build the bike up today so far really really impressed. I mean this bike is like 1000€ cheaper than when you build your bike up on your own out of china and the quality really blew me away. The only thing is that one bolt for the seatclamp was missing but i reacon i can find a replacement.
The only thing that worries me a bit are the weels. they are really true yes, but the spoke tension is quite uneven from my first check. I guess time will tell. the supplied Conti(probably fake idk) didnt seat right but i put on my STRs everything fine.
crankset/BB was pre greased.
I have some random parts that i cant identify really, i made a picture probably some of you know.
I got 2 nice carbon bottle cages and a plastic out front mount so that is fixed ig, but not carbon unfortunatly. (it was a problem the the carbon computer mount was to flexi, the plastic one definitly isnt.)
Gonna do a follow up post.
Ask you questions or what pictures you want.
Best regards from berlin
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The front end of the headset cover is touching the frame for me. Anyone has that issue? I have retorqued everything around the headset 2-3 times. No fix
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Nah got a perfect 1-2mm gap. Have you installed the right c shaped spacer before putting on the top cap?
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That one?
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No mine looks different, if you scroll back in this post you can see pictures of it. It is black an goes right betwenn the top bearing and top cap. they are different sizes so you can adjust how far the top cover is away from the head tube.one side is flat and the other conical so it centers ist the top bearing.
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Ah ok, those guys. I don't remember receiving different sizes. I guess I will start searching in my "lost & found" toolbox drawer.
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I never found it. I ended up cutting a standard micro spacer since brake cables are already routed. I believe the cut micro spacer is not ideal, but should hold on since it's a 1mm, not the flimsy 0.5mm. big enough gap now.
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I wouldnt recommend because this spacer is what centers the fork in the headtube and distributes the load on the top bearing
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The micro spacer is on top of the c ring. The C ring was not enough to give the right gap between frame and headset cover. The micro spacer is only to allow a bigger gap. I don't see how it would cause concerns.
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When you have a chance, replace the current micro spacer with one of those kocevlo micro spacers from Ali for a long term solution, these have holes to tab into the top bearing cover so it can't spin independently. With the solution you have now, I assume it's just a round spacer which you have cut an opening, make sure you file down the cut otherwise it can start damaging the hoses and worse case, steerer as it not tabbed into the rest of the headset.
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Has anyone found a solution to the flimsy computer mount? 3x bolt pattern doesn't seem to align with anything ordinary.
Pic for attention. Decided to put a spin on the replica vam look.
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Hey guys,
I only received one c ring with the headset.
Does anyone know where to order additional c rings with different sizes?
I searched for the Kovcelo Rings but was not able to find one that actually fits.
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Hey, everyone.
Has anyone asked the seller about the recommended torque setting for the tt-x71 seatpost clamp? When I asked, they told me 8–10 N, so I followed their instructions—and my seatpost ended up cracking.
When I contacted the seller about it, they just played dumb and said the torque setting was correct.
Seriously, Seraph sucks.
They’re probably just trying to wait until the one-year warranty on the seatpost expires.
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I ordered the tt-x71 frame in mid-August 2025, and it arrived at the end of September.
I noticed the seatpost was damaged about a month later, but I left it as is for a while.
Then, recently, it started making a strange noise, so I’ve been in contact with the Seraph seller since around February, but they stopped responding in April.
The warranty period is still valid, right?
Sorry if the translation was wrong and didn't come out right.
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Hey, everyone.
Has anyone asked the seller about the recommended torque setting for the tt-x71 seatpost clamp? When I asked, they told me 8–10 N, so I followed their instructions—and my seatpost ended up cracking.
When I contacted the seller about it, they just played dumb and said the torque setting was correct.
Seriously, Seraph sucks.
They’re probably just trying to wait until the one-year warranty on the seatpost expires.
It's a Ostro v2 replica, you should've used Factor's recommended torque setting of 3-4 nm since it is the same system.
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It's a Ostro v2 replica, you should've used Factor's recommended torque setting of 3-4 nm since it is the same system.
That's right.
I'm tightening it to 3 N now, but when I first bought it, I didn't know any better, so I tightened it to 8 N just as I was :'(told. :'(
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That's right.
I'm tightening it to 3 N now, but when I first bought it, I didn't know any better, so I tightened it to 8 N just as I was :'(told. :'(
Yeah they gave you the torque spec for the V1... pretty poor on their part.
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it's been amost 10 years since my last TanTan frame build, but I see that they have not changed. The recommendation is the same as 10 years ago: do not buy from them.
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it's been amost 10 years since my last TanTan frame build, but I see that they have not changed. The recommendation is the same as 10 years ago: do not buy from them.
I assume that reading threads like this biases you a lot. Those people who don't have any issues with their frames don't post here.
I have finished my build this week and so far I am very impressed. The carbon quality seems to be very good.
The assembly process was quite hard for me, because I have never asseembled a whole bike before and I had to face some issues. For example the output holes for the brake hoses in the handlebar were too small. So I made them bigger with my girlfriend's electric nail file ;)
And I had a few minor problems with the expander and this crazy centering ring because of my own silliness.
But after a few days I made it and this the result:
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I have loosened the headset to take a look if the cut c ring did any damage. None that I can see. Also, even if I put the kocevlo spacer with holes, there is no pin protruding from the headset cover or the c-ring. So that spacer would also move independently.
Anyone else had to put a spacer between the headset cover and c ring? Even if not cut, the spacer could damage the steerer or hoses.
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Has anyone found a solution to the flimsy computer mount? 3x bolt pattern doesn't seem to align with anything ordinary.
Pic for attention. Decided to put a spin on the replica vam look.
I am laminating the mount myself with carbon fibre and epoxy. Will share some pics if it worked.
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My mount cracked yesterday. I rolled over a hole and it cracked I wrote to seraph & also SP cycle to see what options they have. SP offers the same bar with the r066. Maybe they have better options,most likely no.
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Did anyone try to build the frame with a normal stem/handlebar setup?
I know deda/fsa offer their solutions for the ostro v2, but my idea was to go with a normal round stem, just need an idea for the headset cover..