I recently bought a new fixed, a Kilo tt. I've been getting alot of wrist pain. I feel like I'm putting alot of weight on my wrists. I've tried moving the seat lower, adjusting the seat, etc. I think I'm going to try for a new stem. The stem that was stock on the bike is 100mm, so I was thinking a 90, or 80mm. Is there a big difference between the two? What are the pros and cons? Any suggestions would be great. Thanks.