All 520 Aluminum Race kits feature RKs premium, lightweight RX or XW-ring sealed racing chain with a gold finish.
Kits include a premium Driven 7075 T6511 lightweight aluminum black hard anodized rear sprocket paired with Driven C45 steel case hardened and quenched front sprockets.
Kits include one-tooth-smaller-than-stock front sprocket.
RKs 520 Aluminum Race Kits combine the enhanced performance of race gearing and lightweight rear sprockets to reduce rotating mass.
Experience quicker starts and quickest to your bikes red line in every gear without sacrificing normal ride and handling.