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175 or 172.5mm cranks. Which is more commonly used? Why?(4 posts)

175 or 172.5mm cranks. Which is more commonly used? Why?TheSandman
Jul 30, 2002 8:55 PM
depends on your leg length and pedalling style (nm)ColnagoFE
Jul 31, 2002 6:15 AM
5' 7" and use 175salansutton
Jul 31, 2002 9:23 AM
Why? I make more power with them. My trainer measures watts and All Things Being Equal, I make more power with 175s. My pedaling style can be described as "pushing big gears", but if I could pedal like Lance, I might be better with 170s.
is the difference important??el_pato
Aug 1, 2002 4:29 PM
I mean really, it's only a difference in length of about this - dash mark. I've ridden both and can't notice a difference. I see more 172.5 cause my friends are shorter than me.

Why do they make them in such small increments anyway?