Vortex 120AZR40 Rear Aluminum Sprocket Pitch Sprockets - 120 40-Tooth

The Vortex 120AZR40 is a 40-tooth rear aluminum sprocket designed for 120-pitch chain applications. Manufactured by Vortex Racing in the USA, this sprocket delivers the precision and durability demanded by competitive motorcycle racers and serious enthusiasts alike.

Key Features:

• 7075-T6 billet aluminum construction — lightweight design reduces rotating mass for improved throttle response
• 100% CNC machined in the USA to the tightest tolerances for precise fitment and concentricity
• Unique saber-tooth groove design increases sprocket longevity and is unlike any other sprocket on the market
• Silver anodized finish helps resist corrosion and maintain appearance over time
• 120-pitch chain compatibility — confirm OEM chain pitch before installation
• 40-tooth rear sprocket for fine-tuned gearing adjustments

Vortex Racing components are developed with direct feedback from professional race teams and have been trusted by world-class champions across Motocross, Supercross, Road Racing, and Flat Track disciplines. The 120AZR40 rear sprocket is a proven performance upgrade for riders seeking reduced unsprung weight and improved drivetrain efficiency.