Vortex 313ZR-56 Red Aluminum 56-Tooth Rear Sprocket

The Vortex 313ZR-56 is a 56-tooth aluminum rear sprocket featuring Vortex's signature red anodized finish. Engineered for performance-oriented riders, this sprocket is CNC-machined in the USA to precise tolerances, delivering excellent concentricity and consistent chain engagement across its full service life.

Vortex's proprietary tooth geometry and specially formulated aluminum alloy are designed to maximize sprocket longevity while keeping rotating mass to a minimum. The red hard-anodized surface treatment provides corrosion resistance and durability beyond standard bare aluminum sprockets.

Key Features:

• 56 teeth for increased low-end acceleration and bottom-end torque
• Red anodized aluminum construction reduces rotating mass compared to steel
• 100% CNC-manufactured in the USA for precision fitment
• Vortex patented tooth design for extended sprocket longevity
• Hard-anodized finish resists corrosion and wear
• Lightweight design aids in power transfer efficiency

This sprocket must be paired with a chain and front sprocket of matching pitch. Always replace the chain and both sprockets together to prevent accelerated wear on new components.