Racing Valve Spring Kit - For 99-14 Honda TRX400EX TRX400X

For 99-14 Honda TRX400EX TRX400X

• Type: Valve Spring

Set contains springs and titanium upper collars and lower collars as required. Kit sold complete for one motor.

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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.