When the 585s cams were installed in the engine, I notice how fast the engine reached the rev limiter in all gears. Once my rear tire needed changing, Ray recommended going with a taller tire. I love the way the cam tire combination is working now. The engine takes a little longer to hit the rev limiter on all gears with the taller tire. I think this combination is perfect. Ray recommended to with the Dunlop elite 4, 180/70R 16 instead of the 180/60R-16. I will recommend this combination to anyone with the 585s and Stage 3 cams.