KIBBLEWHITE LIGHT WEIGHT VALVE SPRING KIT YAMAHA WR250F 01-12, YZ250F 01-12

YAMAHA
YZF/WRF 250 2001-2012,

Lightweight Racing Valve Chrome Silicon Springs.
Kibblewhite # 80-80069. 

HIGH LIFT 0.380 INC.
KPMI takes a scientific -System- approach when designing our Valve spring kits. Each component is designed to work with the others as part of the complete system. KPMI?s engineers use our proprietary design and simulation softwares, and draw on our 70+ years of design experience to create these systems. Our design, simulation, and manufacturing processes insure compatibility of the valve spring?s force and natural frequency with the cam profile, valvetrain mass, system harmonics 65-722" 46# Seat Pressure / 155 lb. at .450 lift
Exhaust - 0.450 Valve Lift OK 46# Seat Pressure / 155 lb. at .450 lift
KPMI takes a scientific -System- approach when designing our Valve spring kits. Each component is designed to work with the others as part of the complete system. KPMI?s engineers use our proprietary design and simulation softwares, and

Part No. 65-721.SP ( Ltd.)

Majority of our listings are for a direct replacement for your original part.

Our parts are made of quality and are designed to meet or exceed the original OEM Standards.

Our products are often a cost effective alternative to genuine OEM Parts.

Please note: the models of bike we state in our listings are for general guidance only. Please make sure this item will fit your bike before purchasing. Also, we cannot guarantee fitment to any non-UK models.