Vortex 610BZR-38 520-Pitch 38-Tooth Aluminum Rear Sprocket

The Vortex 610BZR-38 is a 38-tooth, 520-pitch CNC-machined aluminum rear sprocket designed for high-performance street and racing applications. Part of Vortex's renowned 610 series, this sprocket delivers an ideal combination of lightweight construction and race-proven durability.

Key Features:

• 100% CNC manufactured in the USA to the tightest tolerances for precision fit and concentric rotation
• Aerospace-grade aluminum alloy per Vortex specifications — reduces rotational mass for improved throttle response
• Anodized finish for corrosion resistance and long-lasting appearance
• Vortex patented unique tooth design increases sprocket longevity and reduces chain wear
• 520 chain pitch — compatible with OEM 520 setups and 520 conversion builds
• 38 teeth — allows gearing tuning for optimized acceleration or top-speed balance

Vortex Racing is a U.S.-based manufacturer trusted by professional race teams worldwide across Motocross, Supercross, Road Racing, and Flat Track disciplines. Each sprocket is engineered and track-tested to deliver maximum performance and reliability under extreme conditions.