SPRING VALVE 20 RACING 1998-2003 YAMAHA YZF R1 KIBBLEWHITE INTAKE EXHAUST ROAD 80-80256

A high-performance racing valve spring engineered for precise valvetrain control and durability under high RPM. Designed in-house using proprietary simulation to optimise stress distribution and fatigue life, and processed with targeted stress relief and shot peening for enhanced mechanical strength and consistency. Supplied as spring only.

Features

• Designed in-house using proprietary design and simulation software


• Stress-relieved to improve stability under high load


• Shot-peened to increase fatigue strength and durability


• Racing-grade spring supplied as spring only

Specifications

• Manufacturer: KPMI


• Product type: High-performance racing valve spring


• Configuration: Spring only


• Intended use: High-RPM motorcycle engine valvetrain

Cross-Reference OEM Part Numbers

• 65-6325


• 80-80256

Vehicle Fitments

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  Yamaha YZF-R1 (1998–2003)