Moto-Master Fusion Series Dual Ring Rear Sprocket, 46-Tooth, Black, KX/RM 65 (620263246)

Upgrade your motorcycle’s final drive with the MOTO-MASTER Fusion Series Dual Ring Rear Sprocket, part number 620263246. Designed for select KX/RM 65 applications, this 46-tooth rear sprocket combines a hardened, nickel-coated steel outer ring with a lightweight aircraft-grade 7075-T6 aluminum carrier. The two-material construction helps deliver long service life, reduced rotating weight, and dependable performance for motocross and off-road riding.
The specialized heat-shrink manufacturing process permanently interlocks the outer ring and carrier for a secure, precise fit. Compared with a conventional steel sprocket, the Fusion Series design weighs approximately 50% less while the hardened steel outer ring is engineered to last up to three times longer than an aluminum sprocket. This balance of durability and reduced weight supports responsive acceleration and consistent chain engagement.
The MOTO-MASTER 620263246 rear sprocket is CAD designed, CNC machined, and laser cut using advanced manufacturing technology for accurate tooth profiles and reliable fitment. The carrier features a color-anodized black finish that adds durability and complements the motorcycle’s appearance. Built for riders who need a high-performance replacement sprocket, the Fusion Series offers a practical combination of strength, precision, and weight savings.

Features:

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

• Designed to last up to three times longer than an aluminum sprocket

• Approximately 50% less weight than a conventional steel sprocket

• Aircraft-grade 7075-T6 aluminum carrier reduces rotating mass

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

• Color-anodized black carrier coating provides added durability

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

• 46-tooth rear sprocket for select KX/RM 65 applications

Ships from Parts Unlimited.