Crank Length Hoo-Haw
02-27-10, 12:42 PM
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Crank Length Hoo-Haw
I'm building a new bike. I've always ridden 172.5mm cranks because that's what came on the bikes I bought. I purchased a Quarq from a teammate with 170mm arms. After considering replacing the arms with 172.5s, researching the web for calculators, searching forums including this one, etc., I came to this conclusion:
Nearly everyone is full of hoo-haw, I won't see a noticeable difference, and for the first time in a long time I'm not making another impulse based purchase.
Discuss.
Nearly everyone is full of hoo-haw, I won't see a noticeable difference, and for the first time in a long time I'm not making another impulse based purchase.
Discuss.
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"If it first you don't succeed, try, try again. Then quit. There's no use being a damn fool about it." - W.C. Fields
"If it first you don't succeed, try, try again. Then quit. There's no use being a damn fool about it." - W.C. Fields
02-27-10, 01:00 PM
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02-27-10, 01:06 PM
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The way I figure it, that's 1.5% difference in overall pedal travel top to bottom (2.5mm * 2), assuming the distance is measured from the center of the crank arm to the center of the pedal hole. It also would work out to about 1/10th of an inch difference in crank arm length. I have a bike with 175s and another with 172.5, I can't tell the difference... and I certainly wouldn't spend the $$ to replace a perfectly good set of cranks. If I was building something new or replacing a set of damaged cranks, I'd buy the appropriate size, of course.
