Vortex 427A-39 Aluminum Rear Sprocket 39-Tooth 520 Pitch

The Vortex 427A-39 is a lightweight aluminum rear sprocket designed for high-performance street and track motorcycles. This 39-tooth sprocket is 100% CNC machined from 7075 T6 billet aluminum for a perfect balance of strength and reduced rotating mass.

Key Features:

• Unique tooth design increases sprocket longevity
• CNC machined with saber tooth grooves
• Lightweight construction reduces rotating mass and aids in putting more power to the pavement
• 520 pitch configuration
• 39-tooth count for optimal gearing performance
• Manufactured to the tightest tolerances with the best quality materials in the industry

Vortex Racing continues to manufacture top-quality motorcycle racing components for Motocross, Supercross, Road Racing, Flat Track Racing and Minibikes, with each component rigorously tested by professional race teams worldwide.