Vortex 511ZR-42 Steel Rear Sprocket Pitch Sprockets - 520 42-Tooth Silver

The Vortex 511ZR-42 is a silver, zinc-plated steel rear sprocket featuring a 520 pitch and 42 teeth, designed for performance street and track motorcycles. Built to Vortex's exacting standards, this sprocket delivers the durability and precision that racers and performance riders demand.

Key Features:

• 520 Pitch — compatible with standard 520 chain setups
• 42-Tooth rear sprocket for a balanced blend of acceleration and top-speed performance
• Carbon steel alloy construction per Vortex specifications for maximum strength and wear resistance
• Silver zinc-plated finish to resist corrosion and maintain appearance
• Patented Vortex tooth profile — unique tooth geometry engineered to extend sprocket and chain life
• Manufactured in the USA with precision CNC machining

Vortex steel rear sprockets are a trusted choice for riders who want OEM-level reliability with race-proven performance. The 511ZR series is built from carbon steel alloy to handle high-stress chain loads, while the silver zinc-plated coating provides corrosion protection for long service life. The patented Vortex tooth design reduces wear on both the sprocket and chain, helping extend the life of your entire drivetrain.