Vortex 313ZL-51 Silver Aluminum 51-Tooth Rear Sprocket

The Vortex 313ZL-51 is a 51-tooth aluminum rear sprocket finished in a silver anodize, engineered for KTM mini-bike applications. Manufactured entirely in the USA, this sprocket is CNC-machined from a specially formulated aluminum alloy developed to Vortex's proprietary specifications, delivering an ideal balance of lightweight performance and long-term durability.

Key Features:

• 51-tooth rear sprocket for precise gearing configuration
• CNC-machined from specially formulated aluminum alloy per Vortex specifications
• Silver anodized finish for corrosion resistance and clean aesthetics
• Patented unique tooth design engineered to increase sprocket longevity
• Lightening holes reduce rotating mass for improved throttle response
• 100% manufactured in the USA to tight tolerances

Vortex Racing is a U.S.-based manufacturer with a long-standing reputation in Motocross, Supercross, Road Racing, and Flat Track Racing. Their sprockets are trusted by professional race teams worldwide and built to perform under the most demanding conditions. The 313ZL-51 is a direct-fit replacement that allows riders to maintain or fine-tune their gearing ratio without compromise.