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Messages - QuentinT

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A word of warning to anyone ordering from TanTan.

I received my frame last week and noticed they sent me a fork without mounts on it. All pictures on their site indicate the fork will have mounts, and I don’t see any indication that it was even an option to remove the mounts. They didn’t indicate during any of our correspondences that the fork would be missing mounts, or ask if that was okay

I pointed out the error to them, and asked if they can offer a solution. They said it’s not a quality or safety issue, so they won’t do anything

I asked them to ship me a new fork because sending a product that does not match the description is in fact a quality issue. They said the same thing, and offered to sell me a replacement at full price

I offered to meet in the middle and pay half price, and they said the same thing. They recommended I could sell the current fork on the secondhand market because apparently there is a large market for them (not buying it). They also sent me an invoice for the full price fork. The invoice does not specify anywhere that the new fork will have mounts on it, which seems ridiculous given the circumstances.

I reiterated that this is a quality issue because the frame did not arrive as described and they did not warn me of the deviation. We will see what they say.

I get that they probably work on tight margins, but I’m pretty disappointed that they aren’t shipping as described, and don’t feel at all accountable for this. If they are willing to send an out of spec fork, what would they have done if they sent the wrong size frame? Just told me it’s still safe to ride, so I’ll have to buy a new one?

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Thanks Uberflo. I’m in the US so I think I’m going to order two of the stainless ACB 4545 150 from enduro bearings https://cycling.endurobearings.com/collections/headset-bearings/products/acb-4545-150-ss

I’m not sure how they compare to what you sent, but sealed stainless bearings seem like a worthwhile upgrade on a fully integrated handlebar


For anyone who is still looking for definitive axle lengths, I just checked mine from TanTan
Front is 12x125mm, 17mm thread length, 1.5mm thread pitch
Rear is 12x168mm, 17mm thread length, 1.0mm thread pitch. I’ve seen people buy other UDH hangers on other bikes so they can switch to 1.5mm pitch, not really sure why they decided to make them different


At one point I asked about the Seatpost clamp diameter. If anyone else needs it, it’s 31.8mm

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I just received my frame from tantan. As expected, there aren’t any instructions. I’m noticing that there are two different thickness headset bearings, with identical ID and OD. Which one belongs on the top/bottom?

My guess would be that the thicker one belongs on the bottom because it will handle most of the axial load, but the gap between the fork and frame seems kind of large

4
I’ve never seen a chain with orange links like that, looks awesome. I also just ordered some thundero HD’s for my build

5
I finally joined the club, I ordered this frame from TanTan! I got matte black, and I’ll be adding some gold anodized accents for some color

The build is going to be
- TanTan frame, size 58
    - TanTan bars, fork, axles, headset,
- 50mm deep, 26mm internal width rims, tubeless, from Peter
- GRX 2x12 groupset
    - front and rear derailleur, 11-34 cassette, 160mm ice-tech rotors, cranks
- (ZTTO bar tape)[https://a.aliexpress.com/_mKAZEHZ]

Things I’m still deciding on:
- wheels manufacturing T47BB (seems like a good balance of price/performance)
- (bucklos 3d printed carbon saddle)[https://a.aliexpress.com/_mL9n5p5]
- some spd pedals? Probably just shimano

This is my first full build, and first road/gravel bike. I have a few questions though if anyone can help me out

Will the TanTan seat post clamp accept 7x9 oval carbon rails?

What is the seat post clamp diameter? I want to get a new anodized seat post clamp

For the flat mount brakes, do I need a mounting bolt length specific to the frame? If so, what is the right length?

Are there any parts I’m missing that I’m going to get stuck on during the build? I think I have most of the tools I need already just from taking care of my MTB, but with this being my first full build I might be missing some small parts that some of you take for granted




6
Hi again,
I completed the build, with the SRAM GX and Rival shifters, and set out to test it around Issyk-Kul Lake (about 450 km), driving around it in two days. The temperature range from -27°C to 0°C. Out of the total distance, about a third was proper asphalt, and the rest was a mess of varying bad conditions (gravel, ice, snow).

The frame performed excellently: solid and responsive. It absorbed vibrations well, even though I used 40mm tires. The only drawback was that the glove compartment lid rattled slightly, and the storage bag wore through to holes due to the lower bottle cage mounts inside the frame.
As for the drivetrain—an absolute delight. Fast, smooth, precise, and not a single glitch the entire ride.
Yes, the weight went up a bit—now 8.8 kg without pedals.

Hi @Lupus can you say which handlebar/stem/aero bar you are using? I’m looking to do a setup like this. Thanks!

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