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VALVE SPRING SET CRF250R 08-09 KIBBLEWHITE 30-31150 RACING LIGHTWEIGHT KIT

Availability: In stock

SKU: TL1263303

Part number: 65-712

£273.39

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Part No. 65-712 (Off Road Only Ltd.) Spring Kit, 350 Valve Lift OK, Honda 008-09 CRF250R, Lightweight Racing Valve Chrome Silicon Springs, Titanium Retainers, H.T. Steel lower Collars. Kit, seals. Kibblewhite # 30-31150 INTAKE , 0.350 Valve Lift OK 50# Seat Pressure 145lb. @ .350 lift EXHAUST , 0.350 Valve Lift OK 50# Seat Pressure 145lb. @ .350 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 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, and the engine RPM. Our spring manufacturing partners are U.S based companies that are ISO certified. The Super-Clean Chrome Silicon valve spring wire we use is traceable back to Kobe Japan where some of the best spring wire in the world is manufactured. Combining our design and simulation protocols with this premium quality valve spring wire, and manufacturing processes including, heat treatment, stress relief, and shot peening, allow us to supply you with the best valve springs in the world. Make Honda Model CRF250R Year 2008 to 2009 Type Racing Valve Spring Kits Material Various Description In-0.350 Valve Lift OK 50# Seat Pressure / 145# at .350 lift Ex-0.350" Valve Lift OK 50# Seat Pressure / 145# at .350 lift Retainers 30-31151, Titanium Retainers for Honda® CRF? 250R 2008-2009 30-31152, Titanium Retainers for Honda® CRF? 250R 2008-2009 Keepers Use O.E.M. Springs 30-31153, Chrome Silicon Springs (Intake) for Honda CRF250R 2008-2009 30-31154, Chrome Silicon Springs (Exhaust) for Honda® CRF 250R 2008-2009 Lower Collars 30-31155, Heat Treated Steel Lower Collars (Intake) for Honda® CRF250R 2008-2009 30-31156, Heat Treated Steel Lower Collars (Exhaust) for Honda® CRF? 250R 2008-2009 Seals 30-31190, Solid Viton Seals 30-31191, Solid Viton Seals