Thread: what crank are size should i use?
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Old 05-04-17 | 01:13 AM
  #18  
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The Golden Boy
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Originally Posted by Pepelapu07
goodevenig all,looking for right crank arm fit.im 5'7 ,30 inseam.have a 49cm roadbike with 50tt.whats best fit for my height and 49cm bike?170mm or 172.5mm? thanks
Originally Posted by SteelCharlie
More importantly if you're 5'7, 30 inseam and have a 49cm roadbike you should be looking for a bike that fits before you worry about the cranks. A traditional frame configuration of 53-54cm would be far more likely to provide you with a quality experience.
I'll agree... I'm 5'8" wearing 30" trousers... I feel positively smunched on a bike smaller than 21" (52-54). And 22 (56) is just out of my comfort range.

I know you weren't asking about fit- but... yeah.

I have 170s on all my "road" or "sport" or "touring" bikes. The two ATB style bikes I have are equipped with 175. I think that may be as for needing leverage and having a higher bottom bracket.
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