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TT-X34 Build/Ride First ~250 mile impression Hey guys, bought the tantan x34 which looks like a trek madone, different seat post and handlebar setup.

Some of you guys may consider this an endurance geometry, but im 6'7 and I need 600+ stack and 600+ reach, this is about as aero as I can comfortably go.

So here's the review. There's 4 things I'd like to talk about, three are important, one is a nuisance.

1. The seat post is so wide/thick, it won't fit into my clamp-style maintenance stand. I have a stand like the PRS 3.3-1, same exact clamping mechanism. The top tube and seat tube are likely not going to fit either, but I never would try those two personally because its not meant to be used like that.
2. Because the seat post didn't fit I laid the frame on top of the clamping mechanism with towels but during installation they shifted, causing the aluminum to meet the carbon and rub, which hurt the paint job/chipped it, and so forth. Now on a more expensive name-brand frame the paint job is likely going to be better and not have this happen, but this paint job looks solid, but it's not that durable. I hit it lightly with an Allen wrench by mistake moving the wrench from a chair to the handlebar area to tighten it and I chipped the top tubes paint.
3. The front derailleur is slightly misaligned, at least on mine and in my experience. I don't know if mines just a defect. Its probably not an issue if you run mechanical because boomaye on here ran ultegra on the dengfu r12, which I had/have (broken). I, on the other hand, with force etap axs have to use an angled spacer. https://osymetricusa.3dcartstores.com/ANGLED-WEDGE-SPACER_p_47.html
4. The seat post has been slipping, ive been 5+ miles from home where it's slipped down to the bottom and I look like an idiot riding it. The way I remedied this is by putting scotch tape (masking/tan tape) in-between the wedge and the seat post, the sticky part is against the wedge. This can be because the wedge isn't rough, its smooth so there isn't a lot of friction to help it, or the seapost/frame isn't properly made, but the little hack I talked about has been working for the last 100-150 miles without flaw. The seat post also comes with that sandpaper-type thing glued/built into it, but doesn't change the fact it slips. been torqued to spec (6 nm, assuming 6 is the proper tightness, don't feel like trying higher) and with carbon paste.
The handlebar/cockpit setup is just like the dengfu r12, in fact I think the handlebar is from the same exact supplier, nothing proprietary about it. If I needed I could use a spacer from my r12 on here, but I don't need to.
Overall though, bikes held up, it's extremely twitchy, disc brakes line up fine, nothing else to really talk about. Any questions feel free to comment.
September 15, 2022, 01:41:48 PM 		1
Re: TanTan Seraph TT-X34, FM639 or FM619 It took a while but here we are...

The completed bike with FM639 frame from TanTan / Seraph:
- Custom metallic colour, looks better in real life
- Shimano 105 / Di2 with 50/34 - 10-34  2x12 speed drivetrain
- Elite SLT Disc wheels 40mm deep and 29mm wide
- Schwalbe One tubeless tires 30mm wide
- Mixed 6D saddle (might be changed...)
- SPD mountain bike double sided pedals
- Weight including garmin mount, pedals and bottle cages: 8.3kg

Built up by the new owner with a little help and tips from my side.
She is very happy with how the bike rides after the first short round.

Here the picture:


BR Chris
June 06, 2023, 05:03:20 AM 		1
Re: Problem with LTwoo RX rear derailleur position Very nice frame, very neat! Very nice brakes too! are they the new LTWOO brakes? Where did you get them, did they come with the group you bought from AliX? do you have a link?

For your RD problem, you'll figure it out if you keep at it. There's a book on that, called "the art of motorcycle maintenance". Beautiful book, about banging your head against the wall then finally having a "ah ha" moment. Alternatively, take it to a bike shop. Your problem is bound to be user error, because you're using a brand new road groupset on a road bike with components meant to work with each other, as opposed to doing something weird and exotic using potentially broken second hand parts. So with enough patience and youtube videos, you'll find your error, or bike shop.



February 26, 2025, 01:41:06 AM 		1