Vortex 120AZB-49 Aluminum Rear Sprocket 49T

The Vortex 120AZB-49 is a 49-tooth aluminum rear sprocket engineered for sport and performance motorcycle applications. Machined from high-grade 7075 aluminum alloy, this sprocket delivers a significant weight reduction over stock steel units without sacrificing durability or performance.

Key Features:

• 49 teeth for optimized acceleration and drive ratio tuning
• Precision CNC-machined from lightweight 7075 aluminum alloy
• Hard anodized finish for corrosion resistance and extended wear life
• Direct OEM bolt-on replacement — no modifications required
• Designed for consistent chain engagement and reduced drivetrain wear
• Manufactured to tight tolerances for smooth, vibration-free operation

The 120AZB series is part of Vortex Racing's extensive rear sprocket lineup, available in a wide range of tooth counts to let riders fine-tune gearing for track or street use. Upgrading to a Vortex aluminum sprocket is one of the most cost-effective ways to reduce unsprung weight and improve throttle response.