Vortex 312ZR-42 415-Pitch Aluminum Rear Sprocket 42T Silver

The Vortex 312ZR-42 is a lightweight, high-performance 415-pitch aluminum rear sprocket with 42 teeth, finished in silver. Engineered for riders who demand race-quality drivetrain components, this sprocket is CNC machined from 7075 aircraft-grade aluminum — the same material trusted by professional racers — delivering an exceptional strength-to-weight ratio over stock steel sprockets.

Key Features:

• 415-Pitch Chain Compatibility: Designed specifically for 415-pitch chain systems
• 42-Tooth Configuration: Optimized rear gearing for responsive acceleration and drivetrain performance
• 7075 Aircraft-Grade Aluminum: Maximum strength with significant weight savings over steel alternatives
• 100% CNC Machined: Precision manufacturing ensures perfect concentricity and consistent alignment, reducing drivetrain wear
• Saber Tooth Groove Design: Vortex patent-pending tooth profile for improved chain engagement and extended sprocket life
• Lightening Holes: Strategically placed cutouts further reduce rotating mass for improved throttle response and power delivery
• Silver Electro-Coat Finish: Electrically coated for a bright, corrosion-resistant finish
• Made in the USA: Manufactured domestically to Vortex's exacting quality standards

Reducing rotating mass with the Vortex 312ZR-42 translates directly into quicker throttle response and more efficient power transfer to the rear wheel. Whether used for street riding or track days, this sprocket is a proven upgrade for riders seeking performance and reliability from their motorcycle's drivetrain.