Vortex 840AZKV4-48 VTX Aluminum Rear Sprocket Pitch Sprockets - 48-Tooth 520 Black

The Vortex 840AZKV4-48 is a lightweight, 48-tooth aluminum rear sprocket designed for 520-pitch chain applications. Part of Vortex's 840 series engineered for aftermarket wheel fitments, this sprocket is 100% CNC machined in the USA from a specially formulated aluminum alloy to Vortex's exacting specifications, delivering an ideal balance of strength and minimal rotating mass.

Finished in a black anodized coating, this sprocket resists corrosion while providing a sharp, aggressive look. Vortex's patented tooth profile is engineered for reduced drag and friction, promoting smoother engagement and improved chain longevity. Reduced rotating mass directly translates to improved throttle response, quicker acceleration, and more precise deceleration.

Key Features:

• 48-Tooth, 520-Pitch rear sprocket
• Lightweight CNC-machined aluminum construction — reduces rotating mass vs. steel
• Specially formulated alloy per Vortex specifications
• Black anodized finish for corrosion resistance and aesthetics
• Vortex patented tooth design for increased sprocket longevity and reduced friction
• 100% manufactured in the USA
• Designed for aftermarket wheel fitment (840 series)

Vortex Racing has been producing top-quality motorcycle racing drivetrain components since 1995, trusted by professional race teams worldwide across Motocross, Supercross, Road Racing, and more.