Vortex 313ZB-56 Black Steel 56-Tooth Rear Sprocket

The Vortex 313ZB-56 is a 56-tooth steel rear sprocket finished in a satin electro-plated black coating for corrosion resistance. Engineered to Vortex's exacting standards, this sprocket is precision-manufactured from carbon steel alloy and features Vortex's patented tooth profile design for extended service life and smooth, quiet power transfer.

Key Features:

• 56-Tooth rear sprocket for tuning gear ratio toward increased low-end torque and acceleration
• Black (ZB) finish — electro-plated satin black coating for corrosion protection and clean aesthetics
• Carbon steel alloy construction per Vortex specifications for strength and durability
• Vortex patented tooth design reduces wear and increases sprocket longevity
• Precision-manufactured to tight tolerances for concentricity and consistent chain engagement
• Induction-hardened teeth for superior wear resistance under demanding riding conditions

Vortex rear sprockets are a popular upgrade or direct replacement for OEM sprockets, offering performance-oriented riders the ability to fine-tune their motorcycle's gear ratio. A higher tooth count on the rear sprocket delivers more bottom-end pull and quicker acceleration, making the 313ZB-56 well suited for riders prioritizing responsiveness over top-end speed.