Chinertown
Chinese Carbon MTB => 29er => Topic started by: Eddy-haideli on August 17, 2021, 03:51:53 AM
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Anyone looking for the carbon boost 29er frame?
Our new mold MTB029 12*148mm being done, the sample would be available next month.
Any interesting, feel free to contact me via email.
Eddy@haidelibicycle.com
Best regards
Eddy
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What ist the weight of the Medium Frame?
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What is the effective seat angle on this?
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What is the effective seat angle on this?
75° according to the chart above.
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Am I correct in reading axle to crown measurement is 597 to 616mm depending on frame size?
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Am I correct in reading axle to crown measurement is 597 to 616mm depending on frame size?
No, what the have called "shock" on the green table is actually "Stack" height. If you look at the geo chart and the table below it, you'll see the stack heights correlate with the "shock" size in the green table.
I tried to see what size fork it is for but can't work it out on any of the docs and I don't think Eddie has said yet what travel fork it is designed around.
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The drawing shows two seat tube angles. The one to the bottom bracket is the effective seat tube angle. The one over the seat post is usually called the seat tube angle. The effective seat tube angle is generally steeper than the seat tube angle. It may be that the 75 degrees is the effective measure, but it is not clear.
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The drawing shows two seat tube angles. The one to the bottom bracket is the effective seat tube angle. The one over the seat post is usually called the seat tube angle. The effective seat tube angle is generally steeper than the seat tube angle. It may be that the 75 degrees is the effective measure, but it is not clear.
It shows that it is to the effective saet tube angle (the line through the bb). Click on the geo chart and it will enlarge showing what two lines the angle is measured between.
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Awesome, thanks for the clarification!
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Yup, I totally missed the letter E next to that angle…
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Is this exclusively for a 100mm fork, or a slacker 120mm could work without trouble ?
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Out of curiosity, I drew up the geometry for the medium frame (https://www.bikegeocalc.com/#11HDL+MTB29+Ma0b4c791.02375d312e669.3788f765.98514g988.14808h479.85042i370j370k1479.83384l914m1226.02375n824.97776o1260.19618p982.77236q1253.74459r1385.62693s980.74788t31.8u40v6w0x10y280z40A0B150C25D503.46942E42F172.5G70H30Z20specialized+chisel+Ma0b4c797.38156d309e678.8575f722.34253g981.88318h474.43541i372j370k1491.66224l914m1227.38156n825.91753o1262.96919p983.52559q1254.173r1386.00235s979.47726t31.8u40v6w1x10y280z40A0B150C25D505.53493E42F172.5G30H30Z). (EDIT: geo is very close to the 2021 chisel, albeit 1 deg less slack)
I might consider this frame at some point next year for my entry into the mtb world. I was severely underbiked on my gravel bike on the trails in the Ardèche a few weeks ago :-)
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The geo chart shows fork offset of 45. Seems like most frames have gone to 51. Your thoughts?
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The geo chart shows fork offset of 45. Seems like most frames have gone to 51. Your thoughts?
That is actually the other way around. 51mm has been the mainstay for a long time and many now are going 46,44, or even 42mm.
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Shows what I know. ;D
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Is this going to come in XL size? I like the geo but need the next size up.
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Dear All:
Now the frame MTB029 have been done, size 17" available.
And the other size would be available on next week.
If any guys want to make the pre-order, then feel free to contact us now and show the size and color would be need.
Many thanks.
Eddy@haidelibicycle.com
Eddy
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Sorry, it is available on next month, not next week.
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Dear All:
Now the frame have been done and finished.
Attached the real picture for reference.
Any question or order, feel free to contact us.
Eddy@haidelibicycle.com
Many thanks.
Eddy
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The frame now can be arrange the order.
Thanks
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I've ordered two.
I look forward to build and try them :)
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I've ordered two.
I look forward to build and try them :)
Thanks.
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Full bicycle picture attached.
Any interesting or order feel free to contact.
Eddy@haidelibicycle.com
Thanks.
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More picture attached.
Thanks
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Did anyone try already an XT M8100 crankset on a BB92 frame like this one ?
A 32T is touching the chainstay.
Did you have to put a shim to get the chainring a few mm out ?
When I try this. The spindle is a bit too short than usual to tighten it.
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Try the m8120 with 55mm chainline.
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Try the m8120 with 55mm chainline.
Yeah, that's what I'm afraid of.
This frame is designed for the 56.5mm chainline but not advertised as such.
Not sure how the guy in the picture got his Eagle working, expecting a 53mm chainline max.
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Chainring with offset
3mm & 6mm Chainrings with Shimano direct mount are available from Alugear:
https://alugear.com
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Chainring with offset... 3mm & 6mm Chainrings with Shimano direct mount are available from Alugear:...
Thanks. Your link is broken, something looks strange at its end.
This is precisely the ring I took hoping it would help but no ???
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More pictures.
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And here finally my report on the two builds based on this frame.
First the frame quality. As you can see in the pictures.
The finish is so so... But ok, it is a relatively cheap frame.
The top and bottom headset cups were, how to say that... kind of rough?
And a quick look inside show wrinkles and carbon sheets going out everywhere.
Glad everything is closed now, so it does not exist anymore ::)
Then comes a funny thing about the brakes.
This is XT brakes, quite standard.
At the rear, there is a fillet between the seatstay and chainstay that prevents the caliper to move outward as it should to avoid disc rub.
File the carbon fillet was probably not a good idea, so... yeah... file the caliper ???
When asked, Tideace confirmed me this was the... solution :o
And since we are at it, face the mounts maybe be necessary...
And finally the crank. It is BB92, which in itself is a bad news, but ok.
The frame is apparently designed for the Shimano's wide chainline of 56.5mm. Is this for DH ?
Thanks Tideace for not advertising it as such !
With a normal XT crankset, or SRAM a 32T ring will touch the chainstay...
So I did put a 2.5mm shim on the drive side to push the ring a bit outward.
The chainring clearance is bad but i got a 52.5/53mm chainline which is not ideal but ok.
I asked them some clarifications about this, but got you know... the typical non-answers, so classical when us indelicate occidental folks try to know why things do not work as we expect.
I may ignore an important thing about the Shimano 56.5mm chainline, but I can't understand how a 12sp cassette would work correctly with such chainline.
The FM-009 was a very nice frame, I'm less impressed by this one unfortunately.
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I just ordered one with a rigid fork to build as a commuter/gravel bike. I kinda needed the 34/36t chainring clearance (38t max chainring claimed on haideli's website) for it to... work? Hmm, we'll see how it goes. Price was VERY good so hopefully we'll be able to make it work :I
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I think your being very generous on the frame finish. It just looks plain ugly to me and I'd be scared to ride it hard anywhere. (and that comes from someone who still has and rides - now gently a cannondale raven 2...we all know how they held together or didn't!)
Pity as I was starting to get interested in this frame
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Wow those internal photos are just scary
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carbonazza, could you measure the actual chainstay length please? It clamed to be 425, but does it really so short?
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carbonazza, could you measure the actual chainstay length please? It clamed to be 425, but does it really so short?
Not at home for the week but will do
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Wow. That bearing seat in the headtube looks awful. Not confidence inspiring at all.
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I have the SPcycle version of this frame and it's not as bad as the one here. bearing seats are well formed, PF BB is always going to be a potential problem...
I have a RF aeffect chainset with a 0 dish 34T chainring and it's tight, couldn't go bigger in this frame. it's definitely Boost only wheels, no adapters in this or the chainline is not great.
the dropout is a bit odd. I've had the driveside retaining bolt jump a couple of times on rough stuff, especially cornering. I replaced with a slightly longer bolt and it's been fine, but I think it's the design. The threaded section of the dropout, the bit the axle screws into, is part of the inner plate of the dropout/hanger. the outer plate just holds it all in the frames dropout, and is secured using a small bolt. If there is any flex being transmitted through the rear wheel, it loads the little bolt. On similar dropouts (they look very much like cube dropouts) the threaded section is part of the outer plate, so tightening the axle closes it all together around the frame dropout, making for a much more secure setup. No idea why it's different on these frames.
ride wise, it's quite stiff and not that forgiving. it may be the short stays are responsible for that, but it doesn't have the give of other carbon frames I've ridden.
it's light and climbs like a goat though.
I ran mine with 120mm forks, but it's much better suited to forks up to 110mm travel.
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carbonazza, could you measure the actual chainstay length please? It clamed to be 425, but does it really so short?
Yes, it is 425mm
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I received mine with fork on Friday. I'm going to do an inspection and partial assemble of BB/Crank, headset, and brake mounts to check alignment and report if mine has similar issues to Carbonazza. So far the headset bearing races do not look great either.
I will do any sanding/epoxy work as needed at that point, and then send it to the paint room. As this is going to be a gravel/commuter/monstercross bike, I'm thinking it's going to need to be as obnoxious as possible. VERY tempted to do a bight yellow to neon pink fade with pearl black lettering, but all neons lose their lustre over time in the sun. Open to suggestions on that one!
Another idea is to do a blue/purple chameleon with bright yellow, about 60/40 of each one way or another.
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Neon! It fades, sure, but very slowly, and after years of flashy riding.
If you put light sequins it stays great much longer.
Look forward to see it(in chameleon too :))
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Threw together some neon fade concepts. Personally I'm leaning towards #4. Still need to come up with a model name.
This forum won't resize photos so you'd better all view it on IMGUR (https://i.imgur.com/DptUTKH.jpg) because the high res JPEG otherwise took up multiple screens. Oops!
The place where I paint in the winter lost one of its two boilers the other day so it might take a minute or two before any primer goes on. Oh well. Still gotta do the compatibility checks.
For build, Ideally I'm going to go SRAM 1x11 drop bar style. MONSTERCROSS!