Just gotta chime in here. Last night talking with my son he went on and on about this guy he is friends with and rides an old alum. Allez. He knocks the socks off it and consistently wins races in the Cat 4's. "Dad" he said, "You are right about this. It isn't the bike that makes the difference." Yep. Been telling him that for years. Having said all this, changing the bike will not allow you more speed. It just won't. What has really changed when you move from bike to bike? The motor is the same and that is where the power is generated. If you want a new bike, do it, but please don't expect more speed.