Quote Originally Posted by DeniseGoldberg
Two things that may help - try not to put much weight on your hands (use your abs to hold your upper body position), and keep your wrists straight.
+1. You might also want to try some pads underneath your bar tape to reduce road vibrations - I use the Fizik ones and it helps with my numb hands and sore wrists a lot. Some other options too:

Fizik Bar Gel:
http://www.performancebike.com/shop/...tegory_ID=5256

Aztec Vibe Wrap:
http://www.performancebike.com/shop/...tegory_ID=5256

Specialized Bar Phat:
http://www.specialized.com/bc/SBCEqP...jsp?spid=10018