Originally Posted by terrymorse
The difference between 170 and 175 is 3%. That's 3% more torque into the cranks.
I certainly can tell the difference of 3% in torque, especially on a steep climb. I use 175s and tried a bike with 172.5s. It felt like I was trying to pedal through the bottom of the stroke. My leg length is 88 cm, which is on the long side (classic ectomorph body type).
Wow!, your leg length is 34.6 inches. I couldn't possibly use 175 mm cranks with my 30 inch leg length, not on my current bike frame anyway, perhaps, and I mean perhaps I could get away with it in a small compact frame.
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