ordered 1 tooth up on the rear for my 01 R1.Spoke with a friend who had a 98 model and he went up 1 and said it slowed him down so he went back to stock(racing straight line from a second gear roll)is the gearing the same on the 00-01 compared to the 98-99.any of you guys 1 up and did it scrub off any top end. if it allows you to pull a few more revs the speed may stay the same but dont want to revving allot and not goin anywhere(like when i tried going 2 up on a 95 zx7 went through the gears fast but was slower than stock gearing) sorry so long.