The RK 9101-090EX OEM Replacement Chain and Sprocket Kit is designed for the BMW S 1000 RR model years 2009 through 2011. This complete drivetrain kit includes a premium Driven C45 steel alloy rear sprocket with a black case-hardened finish, paired with a Driven C45 steel front sprocket that is case hardened and quenched for dependable wear resistance.
Built with OE gearing, the RK 9101-090EX provides a direct replacement solution for riders seeking reliable fitment and high-mileage performance. The matched chain and sprocket components are engineered to work together, helping support consistent power transfer and dependable operation during street or sport riding. The natural chain finish and durable sprocket construction provide a practical combination of performance and service life.
Fitment: BMW S 1000 RR, 2009–2011
Brand: RK
Manufacturer Part Number: 9101-090EX
Vendor Part Number: 9101-090EX
Features:
- Application: OEM replacement chain and sprocket kit for BMW S 1000 RR models from 2009 through 2011
- Sprocket Construction: Premium Driven C45 steel alloy rear sprocket with a black case-hardened finish
- Front Sprocket: Driven C45 steel front sprocket with case-hardened and quenched construction
- Gearing: OE gearing for direct replacement fitment and consistent drivetrain performance
- Performance: Designed as a high-mileage performance kit for dependable service life
- Brand and Part Number: RK 9101-090EX