Carbonda FM909

[multig]

Finally i finished my new bike. I bought the first part a year ago, second - 7 month ago, everything else within last 6 months.

[Manofmanymissions]

Looks like a fast bike Multig. Weight?

[multig]

This build - 10,76 kg.
Witout bottle cages, with regular seatpost limboed under 10. Also change to Schwalbe Ralph / Ron tyres reduce weight for 200-250 gramm.

[endo.alley]

Could this bike be used effectively as a cross country racing bike that can maybe double as a marathon racing bike?

[dan_cx]

Could this bike be used effectively as a cross country racing bike that can maybe double as a marathon racing bike?

Don't see why it couldn't. It's essentially the 936 with a horizontal vs vertical mount shock. Leverage ratios will be slightly different, due to the 936 being a rocker & the 909 having more of a hanging/swing link, but I doubt it would be a drastic difference. If I hadn't just built a 936, I'd give the 909 a shot for sure.

[Pedaldancer]

Now the weather got much better in the last couple of weeks and today I did a longer trip.
The S frame fits two 750ml bottles. Using a sideloader , of course 

I am still not sure if I should lower the front 1cm, but so far it's a good match for me. 

[d3xophen]

Apart from Bombtrack, is there any other OEM brand who use FM909 frame?

[bbr]

Kind of interested in this 909. How is it so far in the rear stiffness for those whom are riding this frame?

Wonder if the rear swing arm is laterally stiff if you grab the top side of the rear wheel and seatpost  with push and pull.?

[Manofmanymissions]

Had mine finished yesterday. 10,15 kg.

[Icyseanfitz]

Love the red, what wheels are those? Boost front and rear?

[Manofmanymissions]

Thanks!
The spokes are Bikeahead BiturboRS. Boost converted.

[max7373]

What frame size do you recommend at 176cm and a leg length of 81cm? So have shorter legs than average.

I am wavering between S and M. I want to build the bike with a 120mm suspension fork and still ride a sporty position.

I  added the comparison of the geometries. (Screenshots are taken from https://www.bike-stats.de)

[Zomb1e]

What frame size do you recommend at 176cm and a leg length of 81cm? So have shorter legs than average.

Normally people with longer torso and/or higher ape index should prefer larger sized frames, while people with longer legs - smaller sized ones. If you are happy with riding position on your current bike, the best way is to measure your bike's RAD (distance from BB center to grips center) and try to achieve the same value on 909 with 35-40mm stem.

[max7373]

If you are happy with riding position on your current bike, the best way is to measure your bike's RAD (distance from BB center to grips center) and try to achieve the same value on 909 with 35-40mm stem.

Hey Zomb1e, thanks for your input. Currently I ride only road bike and cyclocorss, so it is difficult or not possible to transfer these values to a mountain bike, right?

[Zomb1e]

Currently I ride only road bike and cyclocorss, so it is difficult or not possible to transfer these values to a mountain bike, right?

Yep, I think it'll be not correct to transfer this value from road bike, but you can try to calculate it using Lee McCormack's and Peter Verdone's methodics. Lee's approach will give you RAD on shorter side, and Peter's one - on longer side. You may choose average of two values as starting point of your mtb fit.