At DMG Motorsports, we present the SUPERSPROX Rear Sprocket Steel 42T-520 BLK, combining durable steel teeth with a lighter 7075-T651 aluminum core for street and off-road applications. CNC machining supports a precise fit on the wheel, while the larger tooth radius helps reduce chain friction and extend chain life.

Features:

• Dual-material rear sprocket for street and off-road applications
• Steel teeth designed to last up to 3 times longer than aluminum
• 7075-T651 aluminum core is lighter than steel
• CNC machined for a precise fit on the wheel
• Larger tooth radius helps reduce chain friction and extend chain life
• U.S. and European patented
• 42-tooth, 520 chain specification
• Black finish