Joined: Dec 2004
Posts: 12,560
Likes: 799
From: Middle of da Mitten
Bikes: Trek 7500, RANS V-Rex, Optima Baron, Velokraft NoCom, M-5 Carbon Highracer, Bacchetta Quattro, Catrike Speed
If you're sliding toward the front of the saddle, either your saddle is too far back, the nose is tilted too far down, or the bars are either too low or too far forward. Or all of the above.