Originally Posted by
Mark42
.....The change in Gear Inches (48 vs 52 with 14 cog) is 90.7 to 97.42. Change in Cadence for 10 & 15mph is 37,56 to 35,52. Guess that is not a really big change, but it sure does make my 59 yr old knees feel better......
I've got 10 years on you + 2 bad knees, 1 bad ankle, emphysema and a bad back.
Pedaling that slow would kill me on about 3 counts.
I went to 165mm cranks and LOW gears and my knees no longer have chronic pain.
I spin 80-85 and have far more endurance than trying to mash at 60, which was near my max with 175mm cranks. (ROM issue with the knee and my foot would be coming off the pedal @ 12 o'clock @ 63 RPM.