Vortex 170ZO-40 VTX Aluminum Rear Sprocket 40T

The Vortex 170ZO-40 is a 40-tooth VTX series aluminum rear sprocket designed as a high-performance replacement for sport and street motorcycles. Vortex Racing is a well-respected name in the powersports industry, known for precision-machined drivetrain components built to exacting tolerances.

Constructed from lightweight 7075-T6 aluminum alloy, this sprocket offers significant weight savings over stock steel sprockets while maintaining excellent strength and durability. The hard-anodized finish provides corrosion resistance and extends service life under demanding riding conditions.

Key Features:

• 40-tooth rear sprocket configuration
• Lightweight 7075-T6 aluminum construction
• Hard-anodized finish for corrosion resistance and durability
• Precision CNC-machined for accurate tooth profile and chain engagement
• Direct OEM replacement fit — no modification required
• Part of the Vortex VTX performance sprocket lineup
• Manufacturer Part Number: 170ZO-40

The Vortex VTX aluminum rear sprocket is an ideal upgrade for riders seeking to reduce unsprung and rotating mass, improving throttle response and overall drivetrain efficiency. Always replace the chain and front sprocket as a set for optimal performance and longevity.