Vortex 525CZK-39 Steel Rear Sprocket 525 Pitch 39 Tooth Black

The Vortex 525CZK-39 is a steel rear sprocket designed for 525-pitch drive chains, featuring 39 teeth in a satin black finish. Built to Vortex's exacting racing standards, this sprocket delivers a reliable balance of strength, durability, and weight savings for street and performance motorcycle applications.

Key Features:

• 525 Chain Pitch – Engineered specifically for use with 525-pitch drive chains
• 39-Tooth Configuration – Supports stock or custom gearing setups for your application
• Laser-Cut Carbon Steel Construction – Precision laser cutting ensures consistent tooth geometry and extended service life
• Case-Hardened Teeth – Hardened tooth surfaces resist wear and maintain strength over high mileage
• Lightening Holes – Strategically drilled to reduce rotating mass without compromising structural integrity
• Electroplated Satin Black Finish – Corrosion-resistant coating provides lasting protection and a clean, understated look
• CNC-Precision Manufactured – Tight manufacturing tolerances ensure concentricity and smooth chain engagement

Vortex has been manufacturing top-quality motorcycle racing components in the USA since 1995. Each part is developed with direct feedback from professional race teams and tested under the most demanding track conditions. The 525CZK-39 is a direct replacement rear sprocket suitable for a wide range of sport and performance motorcycles running a 525-pitch chain.