Moto-Master Fusion Series Dual Ring Rear Sprocket, 51 Tooth, Black (620123251)

Upgrade your motorcycle’s drivetrain with the MOTO-MASTER Fusion Series Dual Ring Rear Sprocket, Part Number 620123251. Designed for demanding off-road and performance applications, this 51-tooth rear sprocket combines a hardened, nickel-coated steel outer ring with an aircraft-grade 7075-T6 aluminum carrier for a strong, lightweight construction. The black finish provides a clean appearance while supporting long-term durability.
The specialized heat-shrink manufacturing process permanently interlocks the outer ring and carrier, creating a secure dual-ring assembly engineered for reliable operation. Compared with a conventional aluminum sprocket, the hardened steel outer ring is designed to deliver up to three times the service life, while the overall design weighs 50% less than a normal steel sprocket. This balance of reduced weight and wear resistance helps support responsive handling and dependable chain engagement.
Feature: Hardened, nickel-coated steel outer ring is engineered for extended wear resistance. Feature: Aircraft-grade 7075-T6 aluminum carrier reduces weight while maintaining strength. Feature: Specialized heat-shrink procedure permanently secures the outer ring and carrier. Feature: Color-anodized carrier coating adds durability and helps protect the finish. Feature: CAD designed, CNC machined, and laser cut using advanced manufacturing technology. Feature: 51-tooth configuration supports precise fitment for compatible motorcycle applications. Choose the MOTO-MASTER Fusion Series Dual Ring Rear Sprocket for a durable, lightweight drivetrain upgrade built with precision and performance in mind.

Features:

• Hardened, nickel-coated steel outer ring is engineered to outlast an aluminum sprocket by up to three times.

• Lightweight dual-ring design weighs 50% less than a normal steel sprocket.

• Aircraft-grade 7075-T6 aluminum carrier provides strength with reduced weight.

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

• Color-anodized carrier coating adds durability and finish protection.

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

• 51-tooth rear sprocket configuration for compatible motorcycle applications.

Ships from Parts Unlimited.