ATV$50.05
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Dirt Bike
RACING VALVE SPRING KIT
$284.82
In stock · stock as of Sep 15, 2026
Shipping calculated at checkout
30-day returns on unused parts
Details
KPMI® valve springs are wound from Premium Kobe Super-Clean Chrome Silicon Wire. KPMI® valve springs are heat-treated, stress relieved, and shot peened to insure maximum performance and life. Springs are engineered for each specific application using proprietary advanced spring design simulation, and analysis software. Engineers pay special attention to cam and spring harmonics, stress, mass, and operating rpm.
Specs
- Vehicle
- Dirt Bike
- Weight Lb
- 0.35
- Shipping Class
- standard
Vehicle Fitment
Supplier-confirmed applications for this exact part. Match the year, make, and model before ordering.
Yamaha WR450F
2003–2015
Parts for the Same Vehicles
These parts share at least one listed vehicle application. Check each part’s fitment for your model and year.
