VALVE SPRING SET CRF450 09-12, KIBBLEWHITE 30-31250 RACING, LIGHTWEIGHT KIT

Part No. 65-708 (Off Road Only Ltd.) Spring Kit, 440 Valve Lift OK,
2009-2012 Honda CRF450R Lightweight Racing Valve Chrome Silicon Springs, Titanium Retainers, H.T. Steel lower Collars. Kit.
Kibblewhite # 30-31250

EXHAUST , 0.440 Valve Lift OK 70# Seat Pressure 183lb. @ .375 lift
INTAKE , 0.440 Valve Lift OK 40# Seat Pressure 130lb. @ .375 lift