there is a good chance your stem is too long and possibly too low, which causes you to lean forward too much and put too much pressure on your palms. i see it all the time, people come in for padded gloves, i ask to see their bike, the stem is too long. shorter stem, with a rise, often fixes it.
Last edited by pablosnazzy; 12-28-11 at 12:37 PM.