Vortex 165ZR-56 Steel Rear Sprocket Pitch Sprockets - 520 56-Tooth

The Vortex 165ZR-56 is a 56-tooth, 520-pitch black steel rear sprocket engineered for high-performance motorcycle applications. Built to Vortex Racing's exacting standards, this sprocket delivers reliable power transfer and extended service life for street and track riders alike.

Key Features:

• 56-Tooth / 520 Pitch – Direct-fit rear sprocket for motorcycles running 520-series chain
• Black Steel Construction – Carbon steel alloy formulated to Vortex specifications for maximum durability and wear resistance
• Precision Manufactured – Induction-hardened and machined to tight tolerances for concentricity, reducing vibration and noise
• Patented Tooth Design – Vortex's unique tooth profile increases sprocket longevity and promotes smooth, efficient chain engagement
• Corrosion Resistant Finish – Black electro-plated satin finish protects against rust and corrosion
• 100% Made in the USA – CNC manufactured at Vortex Racing's facility in Salt Lake City, UT

Upgrading to a 56-tooth rear sprocket increases the overall gear ratio, delivering improved low-end torque and quicker acceleration compared to stock gearing. The Vortex 165ZR-56 is ideal for riders looking to optimize their motorcycle's drivetrain performance without sacrificing durability.