Moto-Master Fusion Series Dual Ring Rear Sprocket, 48-Tooth Black (620123248)

Upgrade your motorcycle’s final-drive performance with the MOTO-MASTER Fusion Series Dual Ring Rear Sprocket, part number 620123248. Designed with a hardened, nickel-coated steel outer ring and an aircraft-grade 7075-T6 aluminum carrier, this 48-tooth sprocket combines the long-lasting wear resistance of steel with the reduced weight of aluminum. The black finish delivers a clean, durable appearance for performance-focused street, off-road, and racing applications.
The Fusion Series construction is engineered to provide extended service life compared with a conventional aluminum sprocket while reducing weight compared with a standard steel design. MOTO-MASTER precisely manufactures the outer ring and carrier, then permanently interlocks them through a specialized heat-shrink process. This integrated design supports reliable power transfer and helps maintain structural integrity under demanding riding conditions.
The carrier is color-anodized for additional durability and resistance to everyday wear. CAD-designed, CNC-machined, and laser-cut using advanced manufacturing technology, the MOTO-MASTER 620123248 rear sprocket is built for precise fitment and consistent performance. Verify your motorcycle’s required tooth count, chain size, mounting pattern, and application before installation.

Features:

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

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

• Approximately 50% lighter than a conventional steel sprocket

• Aircraft-grade 7075-T6 aluminum carrier

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

• Color-anodized carrier coating enhances durability

• CAD-designed, CNC-machined, and laser-cut construction

• 48-tooth rear sprocket with a black finish

• MOTO-MASTER part number 620123248

Ships from Parts Unlimited.