RPM range

[hondatrxrider07]

Does anyone know at about what rpm 450's stop making power? i think mine is adjusted way wrong from the previous owner because it doesnt seem to reach nearly the limit for making hp.

[DnB_racing]

the seat of your pants rpm range is dependent on cam, carb,compression, pipe, port, stroke, gear,tires,even sprocket...it could be any were from 3000 to as much as 8000 depending on setup

[RATPACK Z400]

Google 450 Atv shoot-out on web has good data on them !