Moto-Master Fusion Series Dual Ring Rear Sprocket 50-Tooth Blue for Yamaha (620093450)

Upgrade your Yamaha drivetrain with the MOTO-MASTER Fusion Series Dual Ring Rear Sprocket, part number 620093450. Designed for riders who demand durability, reduced weight, and precise performance, this 50-tooth rear sprocket combines a hardened, nickel-coated steel outer ring with an aircraft-grade 7075-T6 aluminum carrier. The dual-ring construction delivers the long service life of steel while maintaining a lighter overall design than a conventional steel sprocket.
The specialized heat-shrink manufacturing process permanently interlocks the outer ring and carrier for a secure, stable assembly. This precision connection helps support consistent power transfer and dependable performance during demanding riding conditions. Compared with an aluminum sprocket, the hardened steel outer ring is engineered to provide up to three times the service life, making it a practical choice for riders seeking extended replacement intervals and reliable chain engagement.
The blue anodized carrier adds a durable finish while complementing the sprocket’s functional design. Each MOTO-MASTER Fusion Series sprocket is CAD designed, CNC machined, and laser cut using advanced manufacturing technology to help achieve accurate tooth geometry and dependable fitment. The 50-tooth configuration is intended for compatible Yamaha applications and should be matched to the motorcycle’s chain size and drivetrain specifications before installation.

Features:

• 50-tooth rear sprocket designed for compatible Yamaha applications

• Hardened, nickel-coated steel outer ring for enhanced wear resistance

• Engineered to outlast an aluminum sprocket by up to three times

• Dual-ring construction provides 50% less weight than a conventional steel sprocket

• Aircraft-grade 7075-T6 aluminum carrier

• Specialized heat-shrink procedure permanently interlocks the outer ring and carrier

• Blue anodized carrier finish for added durability

• CAD designed, CNC machined, and laser cut for precise manufacturing

• MOTO-MASTER part number 620093450

Ships from Parts Unlimited.