BLACK DIAMOND INTAKE VALVE RS-12 Exhaust Sound Insert where horsepower and speeds have

where horsepower and speeds have achieved new levels in recent years

The first generation Sport Pro MK1 cylinders became very popular among scooter tuners

Excellent stability at high speed thanks to radial technology

Zippered hand warmer pockets

Extra wide platform foot peg measures 57mm wide by 86mm long

BLACK DIAMOND INTAKE VALVE RS-12 Exhaust Sound Insert where horsepower and speeds haveThese materials have proven heat and corrosion resistance properties. Each valve is designed using Finite Element Analysis software, and profiles are tested on our computerized flow bench. Strict attention is paid to the surface preparation of the valves, and the purity of the chrome is closely monitored. A 360 degree anode is used to produce the highest possible grade of hard chrome finish. White Diamond Valves are light, strong, one piece forgings