Looks great on my 2019 Yamaha R1 ,easy to install , now lets give it some use.
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Features lightweight RK Chain's RX or XW sealed ring racing chain, Driven 7075 T6 black hard anodized rear sprocket paired with a Driven steel case hardened front sprockets. Kit is gearing for quick acceleration. RK's 520 Aluminum Race Kits combine the enhanced performance of race gearing and lightweight rear sprockets to reduce rotating mass.