RK Chain Kit – Natural – Yamaha – YZF-R1 ’09-’14 4107-099P

Description

• Kits includes a premium Driven® C45 steel alloy black case hardened rear sprocket paired with Driven® C45 steel case hardened and quenched front sprocket
• RK’s 520 Steel Quick Acceleration Race Kit combines the enhanced performance of race gearing and durability of steel components
• Kit includes a one-tooth-smaller-than-OE front sprocket