The RK 520 Aluminum Race Kit is designed for the Aprilia RSV4 and combines race-focused gearing with lightweight, high-performance components. This kit includes RK’s premium 520 XW-ring sealed racing chain with a durable gold finish, a Driven® 7075 T6511 aluminum rear sprocket with black hard anodizing, and Driven® C45 steel front sprockets that are case hardened and quenched for dependable strength. The kit is manufactured by RK and sold under the RK brand, with vendor part number 8101-118DGX.
For improved acceleration and sharper engine response, the kit includes a front sprocket that is one tooth smaller than the stock sprocket. The reduced gearing helps the Aprilia RSV4 reach its redline more quickly in each gear while supporting quicker starts and strong track performance. The lightweight aluminum rear sprocket reduces rotating mass, helping maintain responsive handling without compromising normal ride characteristics.
Designed for fitment on the Aprilia RSV4, this RK 520 race chain and sprocket kit is suited to riders seeking a balanced upgrade for competition use, track days, and performance-oriented riding. The XW-ring sealed chain helps retain lubrication and protect against contamination, while the Driven® sprockets provide a durable and precisely engineered match for the application. Verify the motorcycle model year and existing drivetrain configuration before installation to confirm fitment.
Features:
- Fitment: Designed for the Aprilia RSV4 motorcycle
- Size: 520 chain and sprocket configuration
- Race gearing: Includes a front sprocket that is one tooth smaller than stock for quicker acceleration
- Chain: RK XW-ring sealed racing chain with a gold finish
- Rear sprocket: Driven® 7075 T6511 lightweight aluminum with black hard anodized finish
- Front sprocket: Driven® C45 steel, case hardened and quenched
- Performance: Lightweight rear sprocket helps reduce rotating mass and improve engine response
- Brand: RK
- Manufacturer: RK
- Vendor part number: 8101-118DGX