Vortex 525A-39 Aluminum Rear Sprocket 525 Pitch 39 Tooth

The Vortex 525A-39 is a high-performance aluminum rear sprocket designed for 525-pitch chain drive systems. Engineered for motorcycle road racing and performance street riding, this sprocket delivers an ideal balance of lightweight construction and long-lasting durability.

Key Features:

• Lightweight F5 aluminum construction — significantly reduces rotating mass compared to steel sprockets for improved throttle response and acceleration
• 100% CNC machined to the tightest tolerances for precise fitment and concentricity
• Specially formulated alloy per Vortex specifications for optimal strength-to-weight ratio
• Unique tooth profile design promotes even chain wear and increases sprocket longevity
• Anodized finish provides corrosion resistance and a clean appearance
• 525 pitch — compatible with 525-series drive chains
• 39 teeth rear sprocket configuration

Vortex Racing has been manufacturing top-quality motorcycle racing components in the USA since 1995. Each part is built to racing tolerances and validated through direct feedback from professional race teams worldwide, making Vortex sprockets a trusted choice for both track and performance street applications.