SPRING VALVE SET/20 YZF R1, KIBBLEWHITE 98-03, ROAD 80-80394

Part No. 65-6326 (phoenixmotos.com)
Item # 80-80394 High Performance Spring Only Kit,
YAMAHA YZF R1 1998-2003,
All KPMI valve springs are designed in house using sophisticated, proprietary design and simulation softwares, and drawing on over 70 years of design experience. Our

stress relief, and shot peening, allow us to supply you with the best valve springs in the world.