real street drag racing bikes are limited to billet hubs, inner and outer, can change friction, steels, spacers, springs, and clutch activation must remain stock. top real street turbos are bumping 190 mph in the 1/4. as far as street, wont be ur clutch slipping, easily have more clutch than any tire can hold there. 450 hp anticipated? share more details about build and who built/tuning this monster. forget real street, ur talking all out competetive 200 mph pro street in a 1k at that power level.