Vortex 435ZKV4-39 VTX Aluminum Rear Sprocket Pitch Sprockets - 39T 520

The Vortex 435ZKV4-39 is a high-performance VTX series aluminum rear sprocket featuring a 39-tooth count, engineered for riders who demand precision, reduced rotating mass, and consistent power transfer. Machined from lightweight, high-strength aluminum and finished with a hard-anodized coating, this sprocket offers excellent durability while significantly reducing unsprung weight compared to steel alternatives.

Key Features:

• 39-Tooth rear sprocket for fine-tuned gearing performance
• 520 chain pitch compatible (Vortex 435ZK series)
• CNC-machined aluminum construction for superior strength-to-weight ratio
• Hard-anodized finish for corrosion resistance and extended wear life
• VTX series design with precision-cut tooth profile for smooth chain engagement
• Ideal for track, racing, and high-performance street applications

Vortex Racing is a trusted name in the powersports industry, renowned for producing race-quality drivetrain components. The VTX aluminum rear sprocket is a direct upgrade over OEM sprockets, offering reduced weight and enhanced performance for competitive and enthusiast riders alike.