Vortex 247ZK-39 Aluminum Rear Sprocket 525 Pitch 39-Tooth

The Vortex 247ZK-39 is a high-performance aluminum rear sprocket designed for motorcycle applications requiring 525-pitch chain. This 39-tooth sprocket is precision CNC-machined from lightweight 7075-T6 aluminum alloy, offering exceptional strength while reducing unsprung rotational mass for improved acceleration and handling response.

Key Features:

• 39-tooth configuration for 525-pitch chain systems
• 100% CNC-machined in the USA to precise tolerances
• Constructed from lightweight 7075-T6 aluminum alloy per Vortex specifications
• CAT5 anodized finish available in multiple color options for corrosion resistance
• Patented tooth design with saber tooth grooves for increased longevity
• Strategic lightening holes reduce rotating mass without sacrificing strength
• Compatible with various sportbike models using 525 chain

Vortex Racing sprockets are trusted by professional race teams worldwide and manufactured to the highest quality standards. The unique tooth profile distributes load more evenly across the chain, extending the life of both sprocket and chain components. The CAT5 anodizing process provides a durable, attractive finish that resists wear and oxidation.