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Re: Best "Downcountry" 120ish-mm Frame for Long Climbs and Rough Downhills
I'm 10lbs heavier and the superlight FM936 has held up well for me.

Did a race in NC with similar characteristics as you mentioned, 8 mile climb in the middle plus to more extended climbs, some rough longer downhill, the last - Mid Black was really eroded out and I was a bit outside my comfort zone there (particularly with my brakes fading by that point), but the dropper & slack geo kept me upright.

The enduro guys killed me on a couple of the gnarlier descents, but having a 22lb bike on the climbs meant I was long gone before they got there.  ;-) 

The Transition Spur is a single pivot frame as well right, but with a little more travel?

If I was buying now I'd probably opt for the FM909, mainly because I could go large and still get a 125-150 dropper in it.  The seat tube on the FM936 was a bit too long for me to go large.  2 water bottle mounts in the front triangle would be a plus for me as well.

April 02, 2021, 07:08:36 AM
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Re: Carbonda FM936 Sizing A diff take:   

I'm 5' 9.5" but have a 5' 11" wingspan so sizing always sux for me.  I prefer a longer TT, but need a shorter ST.

I went with the medium FM936 primarily because of dropper concerns with the long ST on the large.  The sizing isn't terrible, but TT is a bit short for my liking.  I'm up to a 70mm stem (and could actually go up another 10-15mm), but the steering gets slower as the stem length increases and the 66 HTA (with 120mm fork) already slows that down considerably.  IMO this bike really needs a 40-50mm stem, especially with a 120mm fork.

That said, it is still fast and fun (both up & down) to ride and I have no buyers remorse - would just prefer it with the longer TT.     


April 21, 2021, 07:59:15 AM
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Re: Possible 30% Income Tax Credit For The Purchase Of An Electric Bike (U.S.)
Why not for regular bikes as well?  They are at least as "green" right?

April 30, 2021, 11:53:13 AM
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Re: Carbonda fm936 Thoughts I've got 1100 miles on mine and no issue at the rocker/seat tube pivot for me yet.

I did have a squeak from an out of spec lower pivot pin tho. Really easy to check and fix if needed.

I just squeeze the non-drive side crank arm & chainstay together firmly a few times with one hand while using the other to feel the pivot for any side to side play between the main frame & rear triangle.

If there is some play there then you probably have a lower pivot pin that is too long. If so, just pull that pivot pin out and measure it - if it's over 80mm long just file it down to 80mm and reinstall and torque back to spec (I'd recommend blue locktite here).

Happened to mine about 500-600 miles ago and has been squeak-free and solid ever since that fix.

May 03, 2021, 10:04:13 AM
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Re: Carbonda fm936 Thoughts
InsaneDawe,

Top tube length is no more a critical data in geo charts anymore.
In this frame the effective TT will be shorter then on a progressive, older geometry bike because of the much steeper seat tube angle.

The size L frame have a 490mm ST length which is ridiculously long for your height, especially if you really want to build a down country bike with a usable dropped length and enjoy the downhills.

With size M you'll get 6cm longer front center and 50mm longer wheelbase then your basic hardtail have. This mean more stability.

This is a XC bike, not a hard core trail/ enduro bike, you don't need 500mm reach. 475 will feel also really long after the cannondale.

The fact remains he'll need a longer stem with that shorter TT for a comfortable cockpit length (ask me how I know) and the longer stem will slow down the steering that will already be slow with a 66 degree HT.

This bike really needs a shorter stem to wake up IMO if running a 120mm fork.  If I was ordering again I'd get a large as well - actually I'd get the large FM909 because it has a shorter ST so I'd have better dropper options. 

Steeper STs and slacker HTs mean shorter cockpits if the TT isn't lengthened.

May 04, 2021, 03:04:28 PM
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Re: Recommendations for lightweight Full suspension XC/Trail frame
Carbonda FM936 or FM909 should be exactly what you're after.

May 07, 2021, 05:37:12 PM
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Re: Carbonda fm936 Thoughts
ှIs your frame with paint or without paint ?

No paint

May 26, 2021, 11:42:09 AM
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Re: Carbonda fm936 Thoughts
Hey @adroitrider,
how long is that bolt supposed to be?
Mine is exactly 83 mm.

Adam @ Carbonda told me 80mm and that resolved the issue for me.

June 04, 2021, 10:39:15 AM
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Re: Light full suspension frame with two bottle cages
Carbonda FM909 would be similar.  Linkage a bit diff, but similar arrangement.

June 17, 2021, 05:43:22 PM
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Re: Carbonda fm936 Thoughts
I believe these are the frame bearings

4x 6900VRS rocker pivots
2x 6901VRS main/lower pivot
2x 6801 in trunnion mount
22.2mm x 8mm upper shock bushing

August 18, 2021, 05:32:56 AM
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