Vortex 642AZUV4-42 VTX Aluminum Rear Sprocket 42T

The Vortex 642AZUV4-42 is a 42-tooth aluminum rear sprocket from Vortex Racing's VTX line, engineered for riders who demand precision, lightweight performance, and long-lasting durability. Machined from high-grade 7075 aluminum alloy, this sprocket delivers a significant weight savings over steel alternatives without sacrificing strength or wear resistance.

Vortex applies a hard-anodized finish to protect the sprocket surface against corrosion, abrasion, and the rigors of aggressive riding conditions. Each sprocket is CNC-machined to extremely tight tolerances, ensuring smooth chain engagement, consistent power transfer, and reliable performance lap after lap.

Key Features:

• Material: High-strength 7075 aluminum alloy construction
• Tooth Count: 42 teeth for optimized gear ratio tuning
• Finish: Hard-anodized for superior corrosion and wear resistance
• Manufacturing: CNC-machined for precise tolerances and consistent fitment
• Weight: Lightweight design reduces unsprung and rotating mass
• Series: VTX line — built to Vortex Racing's motorsport standards

The Vortex VTX aluminum rear sprocket is a popular upgrade for sport and performance riders looking to fine-tune their drive ratio. Whether chasing a top-speed advantage or improving acceleration off corners, the 42-tooth configuration offers a versatile gearing option. Vortex sprockets are made in the USA and trusted by professional and amateur racers worldwide.