Racing Valve Spring Kit

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.
Features:

• 80 Lbs of Seat Pressure / 205 Lbs @ 0.435" Lift (Max)


• Spring kit is designed for compatibility with the OEM integrated Seal/Base (OE# 3610212) where applicable


• Lightweight heat treated Steel Retainer and Beehive Spring reduce reciprocating mass while providing the spring forces required by high performance boosted racing applications.

Fitment:
2013 KTM 450 SX-F
2013 KTM 450 XC-F
2014 Husqvarna FC 450
2014 KTM 450 SX-F
2014 KTM 450 XC-F
2015 Husqvarna FC 450
2015 KTM 450 SX-F
2015 KTM 450 XC-F
2016 Husqvarna FC 450
2016 KTM 450 SX-F
2016 KTM 450 XC-F
2017 Husqvarna FC 450
2017 Husqvarna FS450
2017 Husqvarna FX 450
2017 KTM 450 SX-F
2017 KTM 450 XC-F
2018 Husqvarna FC 450
2018 Husqvarna FS450
2018 KTM 450 SX-F