Vortex 528CZB-39 CAT5 Aluminum Rear Sprocket 528 Pitch 39-Tooth Black

The Vortex 528CZB-39 is a CAT5 aluminum rear sprocket designed for motorcycles running a 528 pitch chain. Featuring a 39-tooth count and a striking black hard-coat anodized finish, this sprocket is engineered for riders who demand race-level performance and durability in a lightweight package.

Key Features:

• 528 Chain Pitch – designed specifically for 528-series drive chains
• 39-Tooth rear sprocket for precise gearing configuration
• CAT5 lightweight aluminum construction – reduces rotating mass for improved throttle response and acceleration
• Black hard-coat anodized finish – provides corrosion resistance and long-lasting color retention
• 100% CNC machined in the USA to the tightest tolerances
• Patented unique tooth design increases sprocket longevity and reduces wear
• Specially formulated aluminum alloy per Vortex specifications
• Contrasting silver machined accent cuts for a distinctive appearance

Vortex has been manufacturing top-quality motorcycle racing components since 1995. Each part is developed with direct feedback from professional race teams and tested under real-world competition conditions. The 528CZB-39 is an ideal upgrade over heavy OEM steel sprockets, reducing unsprung rotating mass to deliver more power to the pavement.