Vortex 3773-13 Steel Front Countershaft Sprocket Sprockets - 13-Tooth

The Vortex 3773-13 is a 13-tooth steel front countershaft sprocket engineered for demanding motorcycle applications. Built by Vortex Racing — a U.S.-based manufacturer with over two decades of experience producing top-quality motorcycle racing components — this sprocket is precision-manufactured to the tightest tolerances in the industry for a consistent, reliable fit every time.

Constructed from high carbon steel and subjected to an induction hardening process, the 3773-13 resists surface wear and delivers long-lasting durability under hard riding conditions. A special Vortex Nichel (nickel) plating provides an added layer of corrosion resistance to keep the sprocket looking and performing its best over time.

Key Features:

• 13-tooth front countershaft sprocket — direct OEM-style replacement
• High carbon steel construction for maximum strength and longevity
• Induction hardened to reduce surface wear under aggressive use
• Drilled lightening holes reduce rotating mass for improved throttle response
• Special Vortex Nichel plating resists corrosion and extends service life
• Precise manufacturing tolerances ensure proper concentricity and smooth chain engagement
• Made in the USA by Vortex Racing

The Vortex 3773-13 front sprocket is a proven upgrade or direct replacement for worn OEM sprockets, offering race-proven quality in a street-ready package. Always replace the chain and rear sprocket together for optimal drivetrain performance and longevity.