Vortex 313ZB-38 CAT5 Aluminum Rear Sprocket 38-Tooth Black

The Vortex 313ZB-38 is a 38-tooth CAT5 aluminum rear sprocket finished in a black anodized coating. Engineered for sport bike and performance motorcycle applications, this sprocket is precision-machined from high-grade aluminum alloy to deliver a significant weight savings over stock steel sprockets without sacrificing strength or durability.

Key Features:

• CAT5 aluminum construction — lightweight, high-strength alloy for reduced unsprung and rotating mass
• Black anodized finish — corrosion-resistant and scratch-resistant coating for long-lasting appearance
• 38-tooth rear sprocket — direct replacement or performance tuning option
• Precision CNC-machined to tight tolerances for smooth, quiet chain engagement
• Induction-hardened teeth for extended wear life and reliable performance under racing conditions
• Direct OEM-style bolt pattern fit for compatible motorcycle models

Vortex Racing sprockets are trusted by professional racers and enthusiasts worldwide, and are manufactured to the same high standards used in AMA Superbike and Supercross competition. The 313ZB-38 is a bolt-on upgrade that improves drivetrain efficiency and reduces overall weight.