Vortex 527ZB-39 CAT5 Rear Aluminum Sprocket 530 Pitch 39T Blue Anodized

The Vortex 527ZB-39 is a CAT5 series rear aluminum sprocket featuring a 530 chain pitch and 39 teeth, finished in a vivid blue anodized coating. Machined from a specially formulated, high-grade 7075-T6 aluminum alloy to Vortex's exact specifications, it delivers an excellent balance of low weight and long-lasting durability for street and performance riding.

Key Features:

• 530 chain pitch — compatible with standard 530 drive chains
• 39-tooth rear sprocket for precise gear ratio tuning
• 7075-T6 aluminum construction — lightweight yet strong
• 100% CNC machined to the tightest tolerances for consistent fit and performance
• Vortex patented tooth design with saber tooth grooves for extended sprocket longevity
• Blue anodized finish — color anodizing on the sprocket body provides a bold, distinctive look with silver highlights on the teeth and grooves
• CAT5 styling: color anodizing excludes sweeps, mud grooves, and teeth, resulting in bright color with silver accent highlights

The Vortex CAT5 sprocket line is engineered for riders who demand performance and style. The anodized aluminum construction reduces unsprung rotational mass compared to steel sprockets, and the precision CNC machining ensures smooth, quiet chain engagement and consistent power transfer.