Originally Posted by
carleton
vw addict is right.
Think about it, when a road rider has issues with his knees, no one suggests, "Stay out of your 53t chain ring" as a solution.
To me it is simple, overstressing your knees by trying to push a monster gear is bad...
You think that mashing up a hill with a moster gear and 30rpm is the same on your knees as cruising up on a lower gear and say 70 rpm?