Vortex 170ZU-42 VTX Aluminum Rear Sprocket 42T

The Vortex 170ZU-42 is a 42-tooth aluminum rear sprocket from Vortex Racing's popular VTX series, engineered for performance-minded riders seeking a lightweight, durable alternative to OEM steel sprockets. Manufactured from high-grade aluminum alloy with a hard anodized finish, this sprocket delivers excellent wear resistance while dramatically reducing unsprung rotational mass compared to stock.

Key Features:

• 42-tooth count for optimized acceleration and gear ratio tuning
• Precision-machined from lightweight aluminum alloy construction
• Hard anodized finish for corrosion resistance and extended service life
• CNC machined to tight tolerances for smooth, consistent chain engagement
• Lightening cuts reduce overall weight without sacrificing structural integrity
• Direct OEM-style bolt-on fitment — no modifications required
• Compatible with standard motorcycle drive chains

The Vortex VTX sprocket series is a trusted choice among track day enthusiasts and street riders alike. Swapping to a 42-tooth rear sprocket can fine-tune your bike's power delivery, improving low-end torque and acceleration response. Vortex Racing products are manufactured to exacting quality standards, making this sprocket a reliable upgrade for both street and competition use.