The RK 520 Quick Acceleration Chain and Sprocket Kit, part number 9101-129PGX, is designed for BMW S1000RR motorcycles from 2012 through 2018. This performance-focused kit combines race-oriented gearing with durable steel components to provide responsive acceleration for street, track, and competition applications. The kit is sized for a 520 chain conversion and is engineered to provide dependable fitment when installed on the specified BMW model.
The kit includes RK’s premium XW-ring sealed chain for improved durability and resistance to wear, along with a Driven steel alloy front sprocket featuring a black case-hardened finish. The gold chain finish adds a distinctive appearance while supporting long-term performance under demanding riding conditions. Carefully selected components work together as a matched drivetrain system for smooth power transfer and consistent operation.
Feature: Application-specific fitment for BMW S1000RR models from 2012-2018.
Feature: 520-size chain and sprocket configuration for quick acceleration.
Feature: RK XW-ring sealed chain helps retain lubrication and protect against contaminants.
Feature: Driven steel alloy front sprocket with a black case-hardened finish.
Feature: Race gearing supports faster throttle response and strong acceleration.
Feature: Gold chain finish provides a high-visibility performance appearance.
Manufacturer: RK. Vendor part number: 9101-129PGX. Verify the motorcycle year, model, and existing drivetrain configuration before installation. Professional installation is recommended to ensure correct chain tension, sprocket alignment, and final drive operation.
Features:
- Application-specific fitment for BMW S1000RR models from 2012-2018
- 520-size chain and sprocket configuration for quick acceleration
- RK XW-ring sealed chain helps retain lubrication and protect against contaminants
- Driven steel alloy front sprocket with a black case-hardened finish
- Race gearing supports faster throttle response and strong acceleration
- Gold chain finish provides a high-visibility performance appearance
- Manufacturer: RK
- Vendor part number: 9101-129PGX