Vortex 642AZR-50 Aluminum Rear Sprocket 50 Tooth

The Vortex 642AZR-50 is a 50-tooth aluminum rear sprocket engineered for performance motorcycle applications. Vortex Racing is a leading manufacturer of precision-machined drivetrain components trusted by racers and street riders worldwide for their exceptional quality and consistency.

Key Features:

• 50 Tooth Count — Increases rear wheel torque and acceleration for aggressive riding or track use
• Lightweight Aluminum Construction — CNC-machined from high-strength aluminum alloy for a significant weight savings over steel sprockets
• Hard Anodized Finish — Durable anodized coating resists wear, corrosion, and heat for extended service life
• Precision CNC Machining — Tight tolerances ensure smooth, quiet chain engagement and even wear
• Direct OEM Replacement Fit — Designed to bolt on without modification using stock hardware
• 642 Series — Part of Vortex's extensive rear sprocket lineup covering a wide range of motorcycle applications

Upgrading to a higher tooth-count rear sprocket like the 642AZR-50 lowers your effective final drive ratio, delivering stronger acceleration and improved low-to-mid range power delivery — ideal for tight circuits or technical riding. Vortex sprockets are manufactured in the USA and are a popular choice for both competitive racers and enthusiast riders seeking a quality upgrade over stock components.