Thanks for the great advice every one. I have been doing some reading on this topic as well, since I have jsut bought a neew bike I'm going to check the fit first. I am also going to try to increase my cadence, I'm always pedalling too slow. I'm also going to look into clipless pedals. Any suggestion for shoes/pedals, I'm a big guy (6'3", 205 lbs) and take a size 13 wide.