Vortex 840ZUV4-40 Aluminum Rear Sprocket 40-Tooth

The Vortex 840ZUV4-40 is a lightweight aluminum rear sprocket engineered for performance-focused riders. Part of Vortex's proven 840-series rear sprocket line, this 40-tooth sprocket is 100% CNC machined in the USA from a specially formulated aluminum alloy to Vortex's exact specifications.

Key Features:

• 7075-T6 billet aluminum construction — reduces rotating mass for improved throttle response and acceleration
• 100% CNC machined in the USA for precise tolerances and consistent fitment
• Vortex patented saber tooth groove design — unique tooth profile extends sprocket longevity and reduces chain wear
• Silver anodized finish — electrically coated for a bright appearance and corrosion resistance
• 40-tooth rear sprocket — ZUV4 bolt pattern configuration
• Specially formulated alloy per Vortex specifications for optimal strength-to-weight ratio

Vortex Racing has been manufacturing top-quality motorcycle racing components in the USA since 1995, supplying professional race teams worldwide across Motocross, Supercross, Road Racing, and Flat Track disciplines. Each sprocket is built to the tightest tolerances with premium materials, making the 840ZUV4-40 an ideal upgrade over a stock steel sprocket.