Vortex 840AV4-49 VTX Aluminum Rear Sprocket Pitch Sprockets - 49-Tooth 520

The Vortex 840AV4-49 is a 49-tooth aluminum rear sprocket designed as a high-performance replacement for sport and street motorcycles. Part of Vortex's popular VTX (V4) aluminum sprocket series, this sprocket is precision CNC-machined from lightweight 7075-T6 aluminum alloy, offering a significant weight reduction over OEM steel sprockets without sacrificing strength or durability.

Featuring a hard-anodized finish, the 840AV4-49 resists corrosion and wear, helping the sprocket maintain its integrity through extended use and varying riding conditions. The sprocket is engineered to work with 520 pitch chain and is compatible with a wide range of sport bike applications.

Key Features:

• 49 teeth for optimized gear ratio and acceleration tuning
• 520 chain pitch compatibility
• CNC-machined from 7075-T6 aluminum alloy for lightweight performance
• Hard-anodized finish for corrosion and wear resistance
• Precision-cut tooth profile for smooth, quiet chain engagement
• Direct OEM-style bolt-on fitment — no modifications required
• Available in multiple colors to match your bike's aesthetic

The Vortex VTX aluminum rear sprocket series is a trusted choice among sport bike riders and track day enthusiasts looking to reduce unsprung weight and fine-tune their drivetrain gearing. The 840AV4-49 is a direct replacement sprocket that installs with standard hand tools.