
Manufacturer reference: 80-80206
The Kibblewhite Lightweight Spring Kit provides a robust solution for those looking to enhance the reliability of the valve train on modified engines. Designed for supercharged or turbocharged applications and for high-lift camshafts, this kit replaces the original springs with increased rate components and machined retainers to support high RPMs without undesirable valve float. Made in the United States, this pack combines high-performance materials and meticulous machining to meet the demands of motocross, enduro, and quads.
The kit includes:
Compatible with many modifications based on the 450 (e.g. YAMAHA YZ 450 F 2016‑2017, YFZ 450 R), this kit is aimed at riders and tuners looking for enhanced valve retention without compromising reliability. Please follow the manufacturer's recommendations for installation and adjustment).