RK Chain and Sprocket Kit - 520 Aluminum Race - Gold - Yamaha YZF-R1 '15-'23 4107-158DGX

Chain and Sprocket Kit - 520 Aluminum Race - Gold - Yamaha YZF-R1 '15-'23 520 Aluminum Race kit features RK*s premium, lightweight XW-ring sealed racing chain with a gold finish, Kit includes a premium Driven? 7075 T6511 lightweight Aluminum black hard anodized rear sprocket paired with Driven? C45 steel case hardened and quenched front sprockets, Kit includes one-tooth-smaller-than-stock front sprocket, RK*s 520 Aluminum Race Kit combines the enhanced performance of race gearing and lightweight rear sprockets to reduce rotating mass, Experience quicker starts and quickest to your bike*s red line in every gear without sacrificing normal ride and handling