Vortex 201EZK-52 Black 52-Tooth 520-Pitch Steel Rear Sprocket

The Vortex 201EZK-52 is a 52-tooth, 520-pitch black steel rear sprocket designed for performance street and track riders who demand durability without sacrificing style. Built by Vortex Racing — a U.S.-based brand trusted by professional race teams worldwide — this sprocket delivers the tight tolerances and long service life the brand is known for.

Manufactured from high-quality carbon steel and finished with an electro-plated zinc coating, the 201EZK-52 resists corrosion while delivering a sharp black appearance. Induction-hardened teeth maintain their profile under sustained load, providing consistent chain engagement mile after mile.

Key Features:

• 52-tooth rear sprocket — adds low-end torque and improves acceleration response
• 520 pitch — compatible with standard 520 chain setups
• Black zinc electro-plated finish — corrosion-resistant and visually clean
• Induction-hardened teeth — engineered to precise tolerances for longer sprocket life
• Vortex patented tooth design — unique profile that increases longevity and reduces chain wear
• 100% CNC manufactured in the USA — consistent quality and tight fitment
• Tested with direct feedback from top professional racing teams

The Vortex 201EZK-52 steel rear sprocket is an excellent choice for riders seeking a durable, track-proven replacement rear sprocket that holds up to both street miles and hard riding conditions.