Description
2020-2022 Yamaha YZ450F high tech lightweight racing valve spring kits is designed and manufactured for the incredibly stressed and torturous environment in today’s high revving 4-stroke engines. This kit is a must for those using larger valves and big lift cams!
- Performance
- Improved Valve Control
- Allows for a higher rev limiter
- Improved spring control and reduced reciprocating mass
- Kit Includes
- Exhaust Valve Springs
- Intake Valve Springs
- Exhaust Spring Retainers and Platforms
- Intake Spring Retainers and Platforms




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