Vortex 317ZGV4-45 VTX Aluminum Rear Sprocket 45-Tooth

The Vortex 317ZGV4-45 is a high-performance 45-tooth aluminum rear sprocket engineered for riders who demand precision, durability, and reduced unsprung weight. Machined from high-grade 7075-T6 aluminum alloy, this sprocket delivers excellent strength-to-weight performance compared to heavier steel alternatives, making it a popular upgrade for street and track riding.

Key Features:

• Material: Lightweight, high-strength aluminum alloy construction
• Tooth Count: 45 teeth for optimized final drive gearing
• Finish: Hard-anodized for corrosion resistance and long service life
• Precision CNC machined for tight tolerances and smooth chain engagement
• Direct OEM-style fitment — no modifications required
• Reduced unsprung weight improves handling and throttle response
• Compatible with standard chain pitch for this application

Vortex Racing is a trusted name in the powersports aftermarket, known for producing competition-grade drivetrain components. The 317ZGV4-45 rear sprocket is a straightforward bolt-on upgrade that can sharpen acceleration and improve overall drivetrain feel. It is manufactured to strict quality standards and is suitable for both street performance and closed-course competition use.