Clipless with dodgy knees?

[dirtjumper_dmr]

Cheers Billy, that's an amazing read... I've never thought about the possiblility of crank length etc being and issue

 

[GoldenEraMTB]

Check out what Sheldon has to say on the subject of crank length relating to leg length and knee mobility;

http://www.sheldonbrown.com/cranks.html

good read...I forgot about the crank arm length effect.