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#P1043
Power1 CNC racing drive face for Minarelli 50cc 2-stroke scooters.
Ultra stylish design reduces mass on the crank and consequently improves power at the rear wheel!
The kick start can still be used as the cog sits in the centre of the pulley but sometimes when fitting the CNC pulleys you do need to shim them out slightly using shims.
The splines will not prevent any part of the variator from spinning on the crankshaft, it is the compressive force of the crank nut which does this. The splines will always strip immediately if the crank nut starts to loosen or is no spaced correctly. Consequently they aren't really needed and many tuning products and larger engines do not bother with them.
