Chinese Carbon MTB > 29er
cklein FM-M009 build
cklein:
Hello,
I´m new here and hope you can help me.
I was looking for a frame with appr. 1000g and found a good dealer on aliexpress.
http://www.aliexpress.com/item/2016-carbon-mountain-bike-frame-29-China-Axle-142x12-or-135x9-29er-PF30-UD-matte-mountain/32598237061.html?spm=2114.13010208.99999999.261.G1TB6A
The first contact was no problem, but now I have the probelm wich size I should take.
At the moment I have a Cannondale F29 and the frame is small.
The seat tube is 390mm. It is very comfi to ride, but it looks strange.
Do you think, it is the best choise to take a frame with 400mm seat tube (580mm top tube) or with 429,5mm seat tube (598mm top tube).
I think, with 598mm top tube it would be uncomfi and hard for my back. My back is hurting, when I ride long distance.
I´m 168cm and innerleg is 79cm.
A member here in the forum is 171cm and 80cm innerleg and he is riding a 17"
Maybe I should buy a 17" and than a short steem, or smaller frame and normal steem.
Hard to choose.
Carbon_Dude:
My guess would be a 17", medium frame for you. Seems to me a 15" small frame be more for someone shorter than you are.
You can put in your information into some of the online bike calculators and see what they tell you.
This one: https://www.ebicycles.com/bicycle-tools/frame-sizer/mountain-bike/size-sheet?utf8=✓&u=in&r=man&h=1676.4&i=787.4&b=Calculate, recommends a 17.5" frame for the measurements you posted.
cklein:
You´re right, the most calculator said 17". But in the most calculator you can only put in your innerleg and not the complete body size.
And when I take a 17" I´m afraid that the seat post is just a little bit outside...and i´m stretched on the bike
carbonazza:
If you are comfortable with your current bike, you should take it as a reference.
And compare it to the geometry file of the frame you want.
You will be able to see how long the seat post will be out, the stem angle and length, if you need headset spacers.
cklein:
So, I ordered a 17" frame and hope everything will be good.
I'll use this thread when I have other questions and show you pictures during building the bike.
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