Vortex 839AZKV4-39 VTX Aluminum Rear Sprocket 39T

The Vortex 839AZKV4-39 is a high-performance VTX series aluminum rear sprocket featuring 39 teeth, engineered for riders who demand lightweight precision without sacrificing durability. Machined from high-grade aluminum alloy and treated with a hard anodized finish, this sprocket delivers excellent wear resistance while significantly reducing unsprung rotational mass compared to steel alternatives.

Key Features:

• 39-tooth rear sprocket for optimized final drive gearing
• Constructed from lightweight, high-strength aluminum alloy for reduced unsprung weight
• Hard anodized finish for superior corrosion and wear resistance
• CNC-machined to precise tolerances for smooth, consistent chain engagement
• Lightening cutouts reduce overall sprocket weight without compromising structural integrity
• Direct OEM-style fitment for straightforward installation
• Compatible with standard 520 or applicable chain pitch (verify fitment for your application)

Vortex is a trusted name in the powersports industry, known for producing competition-grade drivetrain components used by professional racers and performance street riders alike. The VTX aluminum rear sprocket is an ideal upgrade for sportbike enthusiasts looking to fine-tune acceleration, top speed, or reduce drivetrain weight.