Vortex 120AZB-34 120-Pitch 34-Tooth Black Aluminum Rear Sprocket

The Vortex 120AZB-34 is a 34-tooth, 120-pitch black anodized aluminum rear sprocket designed for high-performance motorcycle applications. CNC-machined in the USA from a specially formulated aerospace-grade aluminum alloy to Vortex's own exacting specifications, this sprocket delivers an ideal balance of lightweight performance and long service life.

The black anodized finish provides corrosion resistance while giving the sprocket a clean, aggressive appearance. Vortex's patented tooth profile geometry reduces chain wear and extends the working life of both the sprocket and chain beyond what standard designs offer.

Key Features:

• 120-pitch chain compatibility for heavy-duty and cruiser-style applications
• 34 teeth for precise gear ratio tuning
• 100% CNC manufactured in the USA for tight tolerances and concentricity
• Aerospace-grade aluminum alloy per Vortex specifications — lightweight without sacrificing strength
• Black anodized finish for corrosion resistance and lasting good looks
• Patented Vortex tooth design for increased sprocket longevity and reduced chain wear
• Reduces unsprung and rotational mass compared to steel alternatives

Whether you're fine-tuning your gear ratios for improved acceleration or replacing a worn OEM sprocket with a premium upgrade, the Vortex 120AZB-34 is a proven choice trusted by professional race teams and enthusiasts worldwide.