Description
Part No. 65-417 (radhouse.co.uk)
Honda XR 650R 2000-2007 Lightweight Racing Valve Spring Kits,
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 65-418.KW.SS Stem Diameter 5.00mm / 0.1957 inc.
Tulip 20 degrees,
OL 84.15mm / 3.310 inc.
Must use KPMI Lightweight Valve Spring Kits when installing Black Diamond VALVES. Use part no 65-707
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.
Item # 30-30161,
Vehicle Compatibility
Please check the exact model and year before ordering.
| Manufacturer |
Model |
Years |
| HONDA |
XR R 650 |
2000-2007 |
