Carbonda FM 1003 / Flybike FM 1266 180mm "Super Enduro"

[Julian]

So, after the FM 1266 has been on the Flybike website for a while (and changed from a Santa Cruz clone to something more original), Carbonda has now announced the same frame called "FM 1003" for end of 2021.

For geo and render pic, see link below
http://www.carbonda.com/news/136.html

It uses a four bar design with a large one-piece rear triangle, making it look more like a single pivot. I've done a quick analysis with Linkage X3 and the results are promising. Very nice linear progression thoughout the travel and 100 per cent anti squat at sag (32t).

Anti rise seems a bit high though. In theory, this means that the rear end won't extend under braking, keeping it low (which is a good thing). But also the suspension may get stiffer and lose traction when braking over a bumby surface.

Can't say if this is a copy of another bike. If not, then this is an impressive new development.

[emu26]

Am I reading that right, 180mm rear travel? On the schematic in the link

[Julian]

Yes, 180mm supposedly.

My software calculated 170mm for a 65mm stroke shock though, not sure why.

[carbonazza]

And what a 180mm in front too ? 

[Icyseanfitz]

Zeb comes in 190 doesn't it?

[Jotegr]

Zeb comes in 190 doesn't it?

Zeb maxes out at 190, comes in lots of sizes.

I've said it before: A 170/180mm is chiner. What a time to be alive. And from Carbonda too.

Edit: looks like another thirsty bike.

[carbonazza]

Yes it is available in 190mm
https://r2-bike.com/ROCKSHOX-Suspension-Fork-29-ZEB-Ultimate-Charger-21-RC2-DebonAir-190-mm-BOOST-44-mm-Offset-tapered-grey-2021

With my recent enduro experience... this would be a crazy bike to ride in the Alps

[Icyseanfitz]

I've a 180 lyrik on my p9 and honestly it's great, not finding it hampering the climbing ability at all really, great going down then, can only imagine having that much travel back and forth

[Julian]

And what a 180mm in front too ? 

Seems like it

The 64 degree head angle is based on a 588mm fork (axle to crown). 180mm forks are a bit longer, lyrik is 591, zeb 596mm. A 190mm zeb will bring the head angle close to 63 degrees...

[QuentinLL]

63° but once sagged or deep in the travel, the difference won't be noticeable.

[jonnybearback]

@julian
"a four bar design with a large one-piece rear triangle"
This confuses me a little. Any mainstream brand examples of this?

[Julian]

@julian
"a four bar design with a large one-piece rear triangle"
This confuses me a little. Any mainstream brand examples of this?

I may have used a confusing description. A four bar usually has a link in the seat stay, close to the rear axle. The FM1003 however has a one piece rear triangle with the "seat stay" link very close to the seat post. So it's like a four bar, but maybe it should rather be called a "linkage driven single pivot". Most famous example of this type is probably the EVIL bikes line up. Solid rear as well, but with a more intricate shock linkage.

[Icyseanfitz]

Biggest issue with the design.....no bottle cage mount

[Verbl Kint]

Looks like a full-gas trail destroyer to me.  I like! 

[endo.alley]

So it's like a four bar, but maybe it should rather be called a "linkage driven single pivot".

Looks to be a beefy single pivot.