- Complete valve spring kit designed to out-perform and outlast factory springs
- Includes lightweight, high-strength Chromium Silicon (CrSi) alloy valve springs, heat-treated steel base washers, and titanium spring retainers
- CNC-machined titanium or heat-treated steel retainers and Cr-Si alloy dual springs for superior valvetrain control at high RPMs
- Springs wound from premium Kobe Super-Clean Chrome Silicon Wire, heat-treated, stress relieved, and shot peened for maximum performance and life
- Beehive spring design and lightweight heat-treated steel retainer reduce reciprocating mass
- Compatible with boosted or turbocharged applications; increased spring rates and high lift compatibility compared to stock
- Provides high-performance camshaft capability
Intake: 1.340 in installed height, 50 lb seat pressure, 162 lb open pressure, 0.440 in lift
Exhaust: 1.360 in installed height, 90 lb seat pressure, 220 lb open pressure, 0.405 in lift
Note: Also rated for max 80 lb seat pressure and 205 lb open pressure at 0.435 in lift (per manufacturer).
Designed for compatibility with the factory integrated seal/base (part 3610212) where applicable.
Package dimensions: 8\" L x 5\" W x 2.25\" H; Weight: 0.74 lbs.
Made in the USA.
Fits the following:
- Honda CRF450R: 2017-2025
- Honda CRF450R 50th Anniversary Edition: 2023
- Honda CRF450RWE: 2019-2025
- Honda CRF450RX: 2017-2025