Vortex 526ZK-39 CAT5 Aluminum Rear Sprocket 525 Pitch 39 Tooth Black

The Vortex 526ZK-39 is a high-performance CAT5 aluminum rear sprocket designed for 525-pitch chain applications. This precision-engineered 39-tooth sprocket combines lightweight construction with race-proven durability, making it an ideal upgrade for street and track motorcycles.

Key Features:

• 525 pitch configuration with 39 teeth for optimal power transfer
• CAT5 hard-anodized aluminum construction for enhanced wear resistance
• Black anodized finish provides corrosion protection and sleek appearance
• CNC-machined to aerospace tolerances for perfect concentricity
• Drilled lightening holes reduce rotating mass and unsprung weight
• Significantly lighter than steel sprockets while maintaining durability
• Made in the USA with premium materials

Vortex Racing has been manufacturing top-quality motorcycle racing components since 1995, with their sprockets tested and proven by professional race teams worldwide. Each CAT5 sprocket features advanced hard-coat anodizing that extends service life beyond standard aluminum sprockets, offering an excellent balance of weight savings and longevity for demanding riders.