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VALVE SPRING SET XR / XL250 KIBBLEWHITE 30-30077 RACING

Availability: In stock

SKU: TL1263325

Part number: 65-726

£127.47

Qty:

Part No. 65-726 HONDA XR200R 1984-85,,, HONDA XR250 / XL250 RFVC 1984 - 1995,,, HIGH LIFT 0.355 INC. Lightweight Racing Valve Spring Kits. Kibblewhite # 30-30077 Description Intake - 0.355 Valve Lift OK 55# Seat Pressure / 150 lb. at .355 lift Exhaust -0.355 Valve Lift OK 55# Seat Pressure / 150 lb. at .355 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.