VO2 is correct, too low a saddle can be much more damaging<br /><br />A good way of estimating seat height, is to set your saddle height at 100% of greater trochanter height. measure seat height from the top of the saddle to the top of your pedal, when the cranks are in direct line with the seat tube.<br /><br />get someone to measure your greater trochanter height when you are standing upright, with your legs slightly apart, and in your bare feet.<br /><br />If you have your saddle set well back or forward, then seat height will need to be adjusted.<br /><br />Hope this helps, and always remember to make small adjustments, and don't go on a big ride after adjusting the seat!<br /><br />Ric