Vortex 838AZB-39 Aluminum Rear Sprocket 39 Tooth

The Vortex 838AZB-39 is a high-performance aluminum rear sprocket featuring 39 teeth, designed to deliver optimal power transfer and weight savings for sport and track motorcycles. Precision-machined from 7075-T6 aluminum alloy, this sprocket offers exceptional strength while reducing rotational mass compared to steel alternatives.

Key Features:

• 39-tooth configuration for balanced acceleration and top speed
• 7075-T6 aluminum construction for superior strength-to-weight ratio
• Hard-anodized finish for enhanced durability and wear resistance
• CAD-designed tooth profile ensures smooth chain engagement
• Self-cleaning mud grooves prevent debris buildup
• Precision-machined bolt holes for accurate fitment
• Lightweight design reduces unsprung weight and improves handling

Vortex sprockets are manufactured to exacting tolerances and undergo rigorous quality control testing. The aluminum construction provides significant weight savings over steel sprockets while maintaining the durability needed for demanding riding conditions. The hard-anodized surface treatment extends service life and protects against corrosion.