RACING VALVE SPRING KIT 2000 Yamaha YZ80 ECE R 90 approved and

ECE R 90 approved and TÜV tested

manufactured in the United Kingdom using the latest techniques in hand-fabrication welding and titanium laser sheet-cutting technology

2007 - Blast 500

A must have for any dealership or custom shop

RACING VALVE SPRING KIT 2000 Yamaha YZ80 ECE R 90 approved andKPMI valve springs are wound from Premium Kobe Super Clean Chrome Silicon Wire. KPMI valve springs are heat treated, stress relieved, and shot peened to insure maximum performance and life. Springs are engineered for each specific application using proprietary advanced spring design simulation, and analysis software. Engineers pay special attention to cam and spring harmonics, stress, mass, and operating rpm. 80 Lbs of Seat Pressure 205 Lbs @ 0. 435"