KPMI Racing Valve Spring Kit 80-80750 | SKU 191-24003

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.

The KPMI Racing Valve Spring Kit is engineered for specified Yamaha YZ450F and YZ450FX applications. Each spring is designed using advanced spring simulation and analysis software, with attention to cam and spring harmonics, stress, mass, and operating RPM. SKU 191-24003 and part number 80-80750 identify this KPMI valve spring kit.

These valve springs are wound from premium Kobe Super-Clean Chrome Silicon Wire, then heat-treated, stress-relieved, and shot-peened to support performance and service life. The kit provides 80 pounds of seat pressure and 205 pounds at 0.435-inch maximum lift.

The spring kit is designed for compatibility with the OEM integrated seal/base, OE number 3610212, where applicable. A lightweight heat-treated steel retainer and beehive spring help reduce reciprocating mass while providing the spring forces required by high-performance boosted racing applications.

Fitment includes 2010, 2011, 2012, 2014, 2015, 2016, and 2017 Yamaha YZ450F models, along with 2016, 2017, and 2018 Yamaha YZ450FX models.

Features:

• Brand: KPMI
• SKU: 191-24003
• Part Number: 80-80750
• Spring pressure: 80 pounds of seat pressure and 205 pounds at 0.435-inch maximum lift
• Material and treatment: Premium Kobe Super-Clean Chrome Silicon Wire with heat treatment, stress relief, and shot peening
• Retainer and spring design: Lightweight heat-treated steel retainer and beehive spring
• OEM compatibility: Designed for the OEM integrated seal/base, OE number 3610212, where applicable
• Fitment: 2010, 2011, 2012, 2014, 2015, 2016, and 2017 Yamaha YZ450F; 2016, 2017, and 2018 Yamaha YZ450FX

Fitment:
Yamaha YZ450F 2010
Yamaha YZ450F 2011
Yamaha YZ450F 2012
Yamaha YZ450F 2013
Yamaha YZ450F 2014
Yamaha YZ450F 2015
Yamaha YZ450F 2016
Yamaha YZ450F 2017
Yamaha YZ450F 2018
Yamaha YZ450F 2019
Yamaha YZ450FX 2016
Yamaha YZ450FX 2017
Yamaha YZ450FX 2018
Yamaha YZ450FX 2019
Yamaha YZ450FX 2020