Vortex 921AZUV4-40 VTX Aluminum Rear Sprocket 40-Tooth

The Vortex 921AZUV4-40 is a 40-tooth aluminum rear sprocket from Vortex's VTX series, engineered for riders who demand lightweight performance without sacrificing durability. Precision-machined from high-grade aluminum alloy, this sprocket delivers a significant weight reduction over stock steel sprockets while maintaining excellent strength and wear resistance.

Key Features:

• 40-Tooth Configuration – Provides optimized final drive gearing for improved acceleration and throttle response
• Lightweight Aluminum Construction – CNC-machined from high-strength aluminum alloy for reduced unsprung weight
• VTX Series Design – Precision tooth profile for smooth, consistent chain engagement and extended chain life
• Hard Anodized Finish – Corrosion-resistant anodized surface for long-lasting performance in all riding conditions
• Precision CNC Machined – Tight tolerances ensure proper fitment and true running balance
• Direct OEM Replacement – Bolt-on installation with no modifications required

Vortex Racing is a trusted name in aftermarket drivetrain components, supplying sprockets to both professional race teams and street riders worldwide. The 921AZUV4-40 rear sprocket is an ideal upgrade for riders looking to fine-tune their gearing or replace a worn stock sprocket with a high-quality, race-proven alternative.