Riding on the tail of an R1 to 145 mph_ he slowed down just when I was just about to shift to 4th...She's a 1200 and is really fast. She jumps up to 120 in flash so I'd say she could reach the governor at 186 pretty easily. 145 without a windshield is fast enough. Cuts through traffic in LA perfectly and the engine breaking keeps you in control. Wheelies if you want them, I like the 6" poor wheelies the best and can get those in the first three gears. Down shifting is music to year years - a little snap crackle pop. Get one!