Vortex 317ZUV4-45 VTX Aluminum Rear Sprocket 45T

The Vortex 317ZUV4-45 is a 45-tooth aluminum rear sprocket from Vortex Racing's VTX series, designed as a high-performance replacement for OEM steel sprockets. Precision-machined from lightweight aluminum alloy, this sprocket delivers a noticeable reduction in unsprung and rotating mass compared to stock, contributing to improved throttle response and overall drivetrain efficiency.

Key Features:

• 45-tooth rear sprocket for tunable gearing options
• Precision-machined lightweight aluminum alloy construction
• Part of Vortex's trusted VTX sprocket series
• Hard-anodized finish for enhanced corrosion and wear resistance
• CNC-machined for tight tolerances and consistent chain engagement
• Direct bolt-on replacement — no modifications required

Vortex Racing is a well-established name in the powersports and motorcycle racing industry, known for producing competition-grade drivetrain components. The VTX aluminum rear sprocket line is a popular upgrade for riders looking to optimize gearing for track or street use while saving weight over the stock sprocket.