Originally Posted by
Brian Ratliff
Fun note: at my track (Alpenrose), ~38mph gives you 2G centripetal acceleration. This means for a 200lb guy, you are putting 400lbs (not including lateral or shock loads) on the wheels. That's getting close to a quarter ton.
Alpenrose is special - first corner at speed there and my seatpost slipped 2" on a bike that was fine all season at Marymoor.