Vortex 170ZBV4-39 VTX Aluminum Rear Sprocket 39T

The Vortex 170ZBV4-39 is a 39-tooth aluminum rear sprocket from Vortex's VTX series, engineered for performance motorcycle applications. Machined from high-strength 7075-T6 aluminum alloy, this sprocket delivers a significant weight savings over stock steel units without sacrificing durability or longevity.

Key Features:

• 39 teeth for precise gearing tuning
• Constructed from 7075-T6 aluminum for an optimal strength-to-weight ratio
• Hard anodized finish resists corrosion and wear for extended service life
• CNC machined to tight tolerances for smooth, consistent chain engagement
• Precision-drilled lightening holes reduce rotational mass
• Direct OEM-style bolt pattern for straightforward installation
• Compatible with standard motorcycle drive chain

Vortex sprockets are a trusted choice among sport bike riders and racers seeking improved throttle response and acceleration through reduced unsprung weight. The VTX series aluminum rear sprocket is a popular upgrade for track day enthusiasts and street performance riders alike.