Vortex 838A-63 Aluminum Rear Sprocket 63-Tooth

The Vortex 838A-63 is a 63-tooth aluminum rear sprocket engineered for performance-oriented motorcycle applications. Machined from high-grade 7075-T6 aluminum alloy, this sprocket delivers an exceptional strength-to-weight ratio, reducing unsprung rotational mass compared to steel alternatives for improved throttle response and acceleration.

Key Features:

• 63-Tooth Configuration: Provides increased torque multiplication and low-end pulling power, ideal for track or aggressive street riding
• 7075-T6 Aluminum Construction: Premium aerospace-grade aluminum offers outstanding durability while significantly reducing weight over OEM steel sprockets
• Hard Anodized Finish: Corrosion-resistant anodized coating extends service life and maintains appearance under demanding conditions
• CNC Machined Precision: Computer-controlled machining ensures consistent tooth profile geometry for smooth, quiet chain engagement and reduced drivetrain wear
• Direct OEM Replacement Fitment: Engineered to match original mounting bolt patterns and chain pitch specifications for straightforward installation

Vortex is a trusted name in the powersports aftermarket, known for producing competition-grade drivetrain components used by professional racers and serious enthusiasts alike. The 838A-63 rear sprocket is an ideal upgrade for riders seeking improved acceleration and a lighter drivetrain without sacrificing reliability.