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Messages - andrewj

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29er / Re: TanTan FM10 29/27.5+
« on: October 28, 2021, 11:35:20 AM »
Whose frame bolts came with loctite pre-applied? All my pivotsl bolts came with blue loctitepre-appplied, but were very under torqued. I torqued them all to 1nm below max indicated. Hopefully no one else loses any more bolts!

Also, I got the Bomber CR shock installed. 185x52.5 trunnion It's a perfect match for this frame's leverage curve. Ultra plush with a good pedalling platform at the sag point - no bob. With the 500lb spring installed the shock is almost 1kg! For the performance, the weight is easily worth it.

Other than receiving the wrong rear spacing (142 instead of 148) I'm really digging the bike on the light trails around my home. I plan to take it for a proper ride this weekend.

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29er / Re: TanTan FM10 29/27.5+
« on: October 20, 2021, 11:07:59 AM »
Yeah a couple people have chimed in that they can fit their boost rear wheel in the frame without having to flex the frame outward. One of the problems here is that it makes it almost impossible to install the rear wheel when the brake caliper and derailleur are installed.

Their messaging is extremely frustrating when I have semt photos showing that they are clearly wrong.

Stuff like this:

" ps: As a frame supplier, we understand the frame better. "

Hmm, clearly not.


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29er / Re: TanTan FM10 29/27.5+
« on: October 19, 2021, 10:39:01 PM »
I purchased on DHGate and they are tripling down that they sent the right frame. It is pretty clear that they are wrong. Photo attached.

They keep saying the same thing: that the axle wouldn't fit if it was a 142x12 frame. The ignorance is strong. I would have expected that they would know the basics of bikes and bike frames.

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29er / Re: TanTan FM10 29/27.5+
« on: October 18, 2021, 03:06:15 PM »
I heard back from TanTan about the rear spacing ... I had to send them a ton of pictures showing the rear spacing is only 143mm. Eventually their response was that it's normal and to flex the chainstays outward to install the wheel. I'm not convinced, but that's all they've come up with. It works, but makes the rear wheel very difficult to install. I think they screwed up and won't admit it.

After some preliminary riding on this, I regret pairing it with the DPX2. To anyone considering this frame I would highly recommend a coil shock. If I had seen the leverage curve posted on lightcarbon's site for the lcfs713 (I think it's the same as the fm10), I wouldn't have bought the dpx2. I removed all the volume spacers and the rear suspension is still too progressive, i.e - ramps up way before full travel. I'm going to try running more sag on the shock (like 35%) and see how that works.

With pressure set to achieve 30% sag, the rear travel is much too firm and does not track the ground very well over the rough stuff. And yes, I have turned off all compression damping. 185lbs, running at about 220psi to achieve 30% sag.

I'm curious what the experience of others had been with air shocks on this frame. If this is the same as the lightcarbon 713 frame, looks like the leverage ratio goes from 3.25 to about 2.2 over the first 135mm of travel. This is crazy progressive and seems designed for a more linear spring rate like a coil shock.


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29er / Re: TanTan FM10 29/27.5+
« on: October 14, 2021, 02:07:02 PM »
It's a 185x50 Fox DPX2 trunnion mount. Once I got the shock into position, it fit perfectly between the frame mounts atthe trunnion end. It was just a matter of sanding the material around the mount.

The other end required no modification and worked perfectly with my 40mm M8 hardware installed on the shock.

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29er / Re: TanTan FM10 29/27.5+
« on: October 14, 2021, 01:10:46 PM »
Thanks for the advice, I'll take the wheel out and measure the dropout spacing with a set of calipers. If it is incorrect, it's a good thing it's just the rear triangle.

As for the fibers, I won't be able to take a photo since it's inside the frame. I felt the frayed fibers while my fingers were inside the frame for cable routing.

Very simple cable routing on this frame by the way - I started from the back and finished at the head tube. This allowed me to reach in the head tube to guide each piece of housing through its intended opening.

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29er / Re: TanTan FM10 29/27.5+
« on: October 14, 2021, 12:02:54 PM »
My frame finally arrived. I had a couple of hours to work on it last night.

I've attached a couple photos. Overall, quality seems OK. The rubber downtube guard is the one available off AliEx - it installed nicely. My fork is only at 130mm in the photo. I need to adjust it to 140mm travel still.

The bad:

- I had to sand down some excess paint / material on the inside of the shock mount to slide my trunnion mount shock into place.

- fair bit of frayed fibers on the inside where post-drilling had been done. I've not worked with a carbon frame from a big manufacturer so I don't know if this is normal. My wife has a flyxii carbon cyclocross bike and it was relatively smooth inside.

- The chainstays had to flex out about 5mm to accommodate my wheel. I hope they sent me the boost version as ordered. Doesn't seem like a big deal, only a couple mm per side. Could have been some excess paint / material similar to my shock issue.

- The provided rear axle was very tight through my hub. There is some noticeable drag through one of the seals on the drive side.

The good:

- The exterior finish is almost flawless. There are a couple visible rough spots around some of the pivots. Probably some minor chipping fron drilling. Very minor and only visible upon close inspection.

- The price. This cost me $777 CAD, plus $16.30 in taxes. That's like $640 USD all in for you folks down south.

- Availability. Yes, I had to wait a couple months, but I was actually able to buy this.

- The sizing / geo. I picked this frame based on my desired reach, HTA, and travel. I currently measure this at a 335mm bottom bracket height. This will be about 338mm once I increase my fork to 140mm. This is a similar height to my previous bike, 2018 Occam TR. While I loved that bike, it was a size medium (too small) and 120mm/130mm R/F travel was not quite enough for my riding. My size large FM10 will have an extra 30mm reach and be 135mm/140mm R/F travel with a slightly slacker HTA.

Anyway, more photos to come. Hopefully finish it up and test ride within the next week. Any technical questions, just send me a DM.

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Component Deals & Selection / Re: Glasses
« on: September 21, 2021, 05:40:50 PM »
My coworker and I both ordered the EXACT SAME POC knock offs from the same seller. His were very nice, the rubber contact points were smooth and flush with the frames. The lenses fit in precisely, plastic looked good. Cheap materials, no doubt, but nicely put together.

Mine were very poor in comparison. The rubber contact points looked like they were cut by hand with an exacto knife and glued onto the frame. They sat proud. The plastic finish looked a bit rough in some locations. The lenses don't fit as precisely and they creak when you flex the frame a bit. One of my lenses came with a bit of scratching. All that said, they were easily worth the $17 CAD. They feel comfy while riding, provide massive wind coverage, and have lots of lense options. I mainly wanted the clear lenses and huge coverage for winter commuting in the dark. Because they sit away from the face a bit, they do not fog. Fits my usage perfectly. My coworker, however, clearly won the AliEx lottery.

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Component Deals & Selection / Re: Meroca MT420 brakes any good?
« on: September 21, 2021, 05:05:07 PM »
I'm confident these are the same as the Clarks M4 that kind of made it to market. I got these Meroca brakes to go on a budget trail hardtail, $60ish CAD off AliEx. They arrived with one of the levers very gouged up. The seller only gave me a couple bucks discount. I hit the gouged lever with some black paint and it looks better, but can still see the deep gouges.

The pads are the same size as the shimano 4-piston brakes. The original pads were pure trash - the backing plate and pad material were rusty. I tried them out after sanding and IPA cleaning, proper bed-in, etc ... total suckage. Popped in the Kingstop Taiwan semi-metallic pads (comparable to Shimano resin pads) and they are good now. I shortened the rear hose and used a shimano olive and barb just fine. I also had to swap levers right to left. I'm confident these are the same as the Clarks brakes and will use that bleed procedure. The lever feel is a bit meh but usable, i think the lever swap introduced some air so I will need to bleed them and see if they improve.

Basically after some screwing around, they're pretty good. Decent 1-finger braking. The calipers actually look very nice in terms of quality, finish, etc. The levers ... look kinda budget and a but clunky. I will say, the lever ergonomics are actually pretty good.

For the price, I would buy them again. Shame about the damage to mine, but it doesn't affect performance.

PS - for good brake pads and hydraulic fittings at half the cost of Shimano, I've had great luck with the Kingstop store on AliEx.

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29er / Re: TanTan FM10 29/27.5+
« on: September 17, 2021, 03:18:33 PM »
The included components vary widely by seller. I ordered mine on DHGate and messaged the seller to find out what was included. Oddly, they said it included a headset and rear axle but not a seatpost clamp. You should ask the seller so that you can scoop up anything that might be missing. Note that you might need some shock mounting hardware. See the earlier posts in this thread.

I inquired about ordering a spare derailleur hanger, but they told me they were out of stock! Does anyone know the hanger number or the Ali link so I can source one?

@SVChucko - Hopefully your shipping is quick - mine has been stuck at "airport departure" for 3 weeks now. I've got all my bits ready to build the bike, just waiting on the frame!

If I get mine first and build it up, feel free to DM me with any questions.

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29er / Re: TanTan FM10 29/27.5+
« on: August 27, 2021, 01:30:37 PM »
Hey guys,

I'm currently waiting on this frame, should arrive in a week or two as it shipped about a week ago. Just wanted to post and let you know I'll be adding my experience to the thread soon.

I actually DM'd a couple users here to ask a couple questions - thanks for the input guys!

I picked up a 185x50 dpx2 trunnion mount and will use my current Aion 35 fork with the RC2 damper. My current bike (2018 Occam TR size M) was a bit too XC and a bit too small for my riding and size (5'-11" with a 6'-2" wingspan). Planning a 135mm rear travel and 140mm front travel 29er for this frame. Due to some posts here about the included shock hardware and rear axle breakage I've picked up a low-friction 8x40mm mounting set from S4 suspension and I also ordered a spare axle from TanTan. Once I find out the length and thread pitch of the axle I may pick up a Rockshox brand rear axle as they have a good selection of sizes.

Anyway, once this is built up it will get a weekly thrashing on rocky, rooty, PNW black trails. Technical climbing is super important to me (sometimes we session the uphills) so I'll comment on how it climbs.

I'm also an experienced home mechanic & wheel builder with the Park Tool course, years of maintenance, and a few builds under my belt.

Anyway, if some of the others came back and gave an update on their experience riding this frame that would be great!

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