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Re: List of Full Suspension MTB Frames Despite the FS27 being marketed as a 120mm bike, it is effectively limited to 100mm travel since no 45mm stroke shock exists for the bike.  The shock mount provisions are 50mm wide, which will not fit a 54mm wide trunnion, not to mention the frame would need to be drilled for 10mm bolts.  Additionally, the trunnion body would interfere with the down tube.  Unfortunately that limits us to 165 length conventional shocks, of which 38mm stroke is the most youll find.
March 10, 2020, 08:37:53 AM 		1
Re: Chinese SC/AM831 Group Buy While I do prefer BSA if given the option, there are a number of "thread together bb92" bottom brackets available.  I have three different brands, and all work well.  Wheels MFG was the original.  Solid and well built.  I replaced the bearings with enduro bearings at 4k miles.  I have an Origin 8 which is also well built, but I have far fewer miles on it.  Lastly, I have a cheap $17 ZTTO brand thread together BB currently installed in my short travel XC bike. I also had to use a 24>22mm adapter to run my sram crankset.  It all works fine, and its hard to argue with the price.  When the time comes, Ill swap out the bearings for better quality, but the thread together housing is what matters.

https://www.aliexpress.com/item/33050046038.html?spm=a2g0s.9042311.0.0.27424c4dKyE5c2
April 02, 2020, 02:14:34 PM 		1
Re: TanTan FM10 29/27.5+ Shes all built up, but still needs dialing in.  Maybe a shakedown run tomorrow.  Most of the parts are obviously well used from my last frame.  The Manitou Magnum was stretched from 140 to 153mm travel.  Drivetrain is all new except for the crankset and a worn out absoluteblack oval that desperately needs replacement.   Have a Wheels-Mfg thread together BB to keep from developing any creaks.  Wheels are nextie i45 carbon hoops on sram 900 hubs.  Brakes are simano zee with 203/180 hope rotors.  All around solid bike.  Ive been riding a big split in travel (140/100) for so long, this feels really weird to me right now.   Let me know if you guys want any detailed / close up pics of any specific areas, and Ill snap a few tomorrow. 


June 12, 2020, 05:33:52 PM 		1
Re: TanTan FM10 29/27.5+ BB shell width is 92mm, spot on.  Boost or not, the BB shell should be the same.  The chainring offset should match the rear spacing.  For Sram its 3mm inboard offset for boost, or 6mm offset for 12x142.  For what its worth, I do have boost.  The chainline is certainly a sharp angle, but I wouldn't call it any worse than any other bike Ive owned.
August 11, 2020, 04:00:03 PM 		1
Re: TanTan FM10 29/27.5+
Quote from: skelt on August 17, 2020, 12:26:26 PM
Hi! I just found this site.

Yeah i'm having some teething problems with the frame.  Like one of the posts above my front bolt for the rear shock also snapped! Doesn't fill you with confidence that the carbon itself is solid, but it appears to be....i hope.

I've ordered a titanium m10x80 bolt and nut, 3mm spacers, a rubber o-ring and washer from ebay.  Also ordered 10x50 mounting kit from: https://www.tftuned.com/tf-tuned-mount-kit-127mm-m10/p2938

I also had to hand make a aluminium adapter and drill the holes in the correct location to stop the frame rubbing.

Fingers crossed that'll be it!

Edit: i ordered the frame on the 5th of march 2020

Welcome, glad to hear from you.  Your fix seems to be a pretty good workaround.   Sucks that we have to modify things ourselves to get some added reliability, but small price in the grand scheme of things...  The carbon itself appears to be pretty stout.

I currently have two fixes for the broken shock bolt:

#1, more of a preventitive measure, keeps the existing stock bolt in place.  Instead of using spacers, I ordered a length of 1/2" OD .049 wall stainless tube for ten bucks on ebay.  The inner diameter is a perfect fit to the 10mm shaft.  I cut a section of tube to 54mm in length.  Since the hardware now spans nearly the entire width from bearing to bearing, the bolt should be much less prone to breaking at the thinner center section.  The shear strength is on the 10mm section of the bolt, not the center 8mm section.  Youll need to use the trunnion mount inner washers on either side of the tube.

#2 is similar to the fix mentioned earlier, and will help while you're waiting for replacement parts to arrive, assuming youve already broken the bolt.  I'm using off the shelf 54x8mm mounting hardware, 8mm ID 2mm thick spacers, 8mm x 70mm sex bolt (or 5/16" x 3" bolt cut to length).  And use drilled out alloy chainring bolts to fit the 8mm bolt in the 10mm inner bearing race. 

I'm still using the second option while I wait for the warranty replacement bolts, then I'll move to option 1 purely for aesthetics.  I think both options are considerably stronger than the factory bolt, and neither is particularly expensive.
August 17, 2020, 01:52:06 PM 		2
Re: TanTan FM10 29/27.5+
Quote from: CzHuska on August 23, 2020, 12:14:49 AM
Received my frame yesterday...
Finish on the frame for me is 'eh' with areas around the frame I have had to file/sand down. Largest issue I have is the dropper post not going in all the way due to a ring of CF that was left which I have almost smoothed out. I was considering ordering a hardtail from them for myself and a friend, but after this process I'll have to pass on it.

Bike looks nice.  Yeah, I'll agree that the finish might have been just a touch short of the quality other china carbon frames have arrived in.  Especially the replacement parts they sent.  In fact, I decided to keep my original modified parts on the bike until I have a reason to swap out.  The finish one side of the metal bracket is completely rough and unfinished, as if someone surfaced that edge with a grinder by hand.  I chalk it up to them trying to catch up with the backlog after the coronavirus shutdown.  Maybe others manufacturers are experiencing similar issues as well.

Anyway, couple the lackluster finish with the lack of QC, and the broken parts and all the DIY work this frame has required, and it may well be my last TanTan frame too.  Still, the proof is in the pudding, and if the carbon is strong and frame works well with the modifications, I'll still be quite pleased with the purchase.  My bikes dont stay perfect and unscratched for very long.  Only time will tell how this frame fares.
August 23, 2020, 07:02:32 AM 		1
Re: TanTan FM10 29/27.5+
Quote from: emu26 on September 02, 2020, 06:01:48 PM
Isn't it a 54mm gap?  That's what the specs say.

The bearings are very sligtly wider than 54mm.  I would believe 56 could be correct, maybe even 58.  To fit a 54mm trunnion shock in there you need to use the two 10mm ID washers that come with the hardware kit.  I recall hem being closer to 2mm thick, but thats going by memory.  Nevertheless, the distance from bearing to bearing is greater than 54 mm.
September 02, 2020, 06:32:39 PM 		1
Re: TanTan FM10 29/27.5+ MX72 and chinerrider, both your bikes look great!  Good luck with 'em!  Just watch out for loosening bolts, and keep the loctite close by!
September 12, 2020, 06:59:59 AM 		1
Re: TanTan FM10 29/27.5+
Quote from: ixlix on September 21, 2020, 10:19:05 PM
Hi everyone, seriously considering this frame. Just wanted to ask about sizing.

Im just over 6ft & 32" inseam, would the large be suitable for me? The frame geometry looks bigger than some of the eqivalent sizies of name brand geometry.

Whats everyone else going for?

I'm 6'0", 220 lbs and 32" inseam and find the Large fits well.
September 22, 2020, 06:37:11 AM 		1
Re: TanTan FM10 29/27.5+ My last frame was a FS27, which was identical to the fs29 except it came in boost spacing, while the FS29 was standard 12x142.  Perhaps something similar here?  Looking at my frame with the 27.5x3 stuffed in there, it sure looks like it would fit 29er wheels as long as you didnt go too big on the tire.
September 23, 2020, 05:43:38 AM 		1