The RK 4107-980EX OEM Replacement Chain and Sprocket Kit is designed for Yamaha YZF-R1 and YZF-R1M/1000R applications requiring dependable, high-mileage drivetrain performance. This complete kit includes OE gearing to help preserve the motorcycle’s original power delivery, acceleration characteristics, and overall fitment. The package combines a premium Driven® C45 steel alloy rear sprocket with a Driven® C45 steel front sprocket for a durable replacement solution.
The rear sprocket features a black case-hardened finish designed to improve wear resistance under demanding riding conditions. The front sprocket is manufactured from C45 steel and is case hardened and quenched for added strength and durability. Together, these components provide reliable engagement and extended service life when properly installed and maintained.
Fitment: Designed for select Yamaha YZF-R1 and YZF-R1/1000R models using original-equipment gearing. Verify the motorcycle year, model, and required chain and sprocket specifications before installation. This RK OEM Replacement kit is intended for riders seeking a direct, performance-focused drivetrain refresh with durable Driven® sprockets and trusted RK engineering.
Features:
- Brand: RK
- Manufacturer: RK
- Part Number: 4107-980EX
- Application: Yamaha YZF-R1 and YZF-R1/1000R motorcycles
- Kit Type: OEM replacement chain and sprocket kit
- Gearing: OE gearing for original-style performance and fitment
- Rear Sprocket: Driven® C45 steel alloy with black case-hardened finish
- Front Sprocket: Driven® C45 steel, case hardened and quenched
- Performance: Designed as a high-mileage replacement kit
- Fitment: Verify model year and original-equipment specifications before installation