The RK 520 Quick Acceleration Chain and Sprocket Kit, part number 4067-039PX, is designed for Yamaha YZF-R6/S sport motorcycles. Manufactured by RK and supplied under vendor part number 4067-039PX, this performance-focused kit combines responsive race gearing with durable steel components for riders seeking sharper acceleration and dependable drivetrain performance.
The kit includes RK’s premium 520 XW-ring sealed chain and a Driven steel alloy front sprocket with a black case-hardened finish. The sealed chain design helps retain lubricant while limiting contamination, supporting smooth operation and extended service life in demanding riding conditions. The steel sprocket is engineered to withstand the loads associated with spirited street riding, track use, and repeated acceleration.
Fitment: Designed for Yamaha YZF-R6/S models that use a 520 chain and sprocket configuration. Confirm the motorcycle’s model year, existing drivetrain specifications, and gearing requirements before installation. The Quick Acceleration setup is intended to prioritize acceleration response through performance-oriented gearing, making it suitable for riders who want stronger drive out of corners and more immediate throttle response.
Installation should be completed using appropriate motorcycle service procedures, with chain alignment, tension, and sprocket installation checked before operation. RK’s 520 Quick Acceleration Race Kit offers a coordinated chain and sprocket solution for Yamaha YZF-R6/S applications, combining race-inspired gearing with robust components from a recognized drivetrain manufacturer.
Features:
- Size: 520 chain and sprocket configuration
- Model: Quick Acceleration Race Kit
- Brand: RK
- Manufacturer: RK
- Vendor Part Number: 4067-039PX
- Fitment: Yamaha YZF-R6/S motorcycles using a compatible 520 drivetrain
- Chain Type: Premium XW-ring sealed chain
- Sprocket Material: Driven steel alloy
- Sprocket Finish: Black case-hardened finish
- Performance: Gearing designed for quick acceleration
- Construction: Durable steel components for demanding street and track use