Vortex 920AZR-40 VTX Aluminum Rear Sprocket Chain Sprockets - 40-Tooth 520

The Vortex 920AZR-40 is a 40-tooth aluminum rear sprocket from Vortex's VTX series, designed for high-performance motorcycle applications. Precision-machined from lightweight aerospace-grade aluminum alloy, this sprocket delivers an optimal balance of strength and weight reduction compared to stock steel sprockets.

Key Features:

• 40-Tooth Design – Provides excellent acceleration and drive characteristics for street and sport riding
• Lightweight Aluminum Construction – Significantly reduces unsprung rotational mass for improved handling and throttle response
• Precision CNC Machined – Tight tolerances ensure smooth, consistent chain engagement and long service life
• Hard Anodized Finish – Resists wear, corrosion, and scuffing for extended durability
• 520 Chain Pitch Compatible – Engineered for use with 520-pitch drive chains
• Direct OEM Replacement Fitment – Bolt-on installation with no modifications required

The Vortex VTX aluminum rear sprocket is a popular upgrade for sport and performance motorcycle riders seeking to shed rotational weight and improve driveline responsiveness. The hard-anodized surface treatment extends sprocket life while keeping the package as light as possible.