Vortex 3272-15 520 Conversion Front Countershaft Sprocket 15T

The Vortex 3272-15 is a 15-tooth, 520 pitch conversion front countershaft sprocket designed for competitive motorcycle applications. Vortex Racing, a U.S.-based manufacturer with over 15 years in the motorsports industry, engineers this sprocket to allow riders to convert from a heavier OEM chain pitch to a lighter, performance-oriented 520 chain setup — a popular upgrade for road racing, flat track, and street performance use.

Machined from high-strength steel, the 3272-15 delivers the durability and precision fit that Vortex is known for across Motocross, Supercross, Road Racing, Flat Track Racing, and Minibike applications. The 520 conversion reduces unsprung and rotating mass compared to larger-pitch OEM drivetrain components, contributing to improved throttle response and overall drivetrain efficiency.

Key Features:

• 15-tooth front countershaft sprocket
• 520 pitch conversion — compatible with 520 chain systems
• Manufactured from high-strength steel for long service life
• Precision CNC machined for accurate fitment and smooth chain engagement
• Made in the USA by Vortex Racing
• Designed for performance and racing applications

The Vortex 3272 series is a direct-fit 520 conversion sprocket, making it an ideal choice for riders looking to reduce drivetrain weight without sacrificing reliability. Always pair with a compatible 520 pitch rear sprocket and chain when performing a full conversion.