Originally Posted by
Bill Kapaun
I have one knee with a limited range of motion.
5mm made a hell of a difference, increasing my cadence from 70 to 85. (170>165)
2.5mm would have helped some.
That's me too only, in my case, it's my left hip that's the problem. For me the sweet spot seems to be 165 mm cranks. I've got 170 mm cranks on my beater. That works OK, but I can tell the difference. I've tried cranks as short as 148 mm on my recumbent bikes. They're OK too but feel a little "choppy".