Vortex 610BZK-38 CAT5 Black Aluminum 38-Tooth 520-Pitch Rear Sprocket

The Vortex 610BZK-38 is a 38-tooth, 520-pitch CAT5 aluminum rear sprocket finished in a striking black anodized coating. Engineered for performance street and track riders, this sprocket is 100% CNC machined in the USA from a specially formulated aluminum alloy that delivers an exceptional balance of strength and low weight.

Key Features:

• 38-Tooth / 520-Pitch: Designed for motorcycles running a 520-pitch chain
• Black CAT5 Anodized Finish: Durable, corrosion-resistant black anodized coating for a clean, aggressive look
• Lightweight Aluminum Construction: Reduces rotating mass compared to OEM steel sprockets, improving throttle response and acceleration
• 100% CNC Machined in the USA: Manufactured to tight tolerances using Vortex's specially formulated alloy for consistent, precise fitment
• Vortex Patented Tooth Design: Unique tooth geometry increases sprocket longevity and promotes smoother chain engagement
• Performance Proven: Developed with direct feedback from top professional race teams across Motocross, Supercross, Road Racing, and Flat Track disciplines

The 610BZK-38 is an ideal upgrade for riders looking to shed weight from the drivetrain while maintaining reliable, long-lasting performance on the street or track. Always replace the chain and front sprocket at the same time for optimal drivetrain life.