Vortex 840CZBV4-40 Aluminum Rear Sprocket 40T

The Vortex 840CZBV4-40 is a high-quality 40-tooth aluminum rear sprocket from Vortex's CZ series, designed as a direct-fit replacement or performance upgrade for compatible sport and street motorcycles. Precision-machined from lightweight aluminum, this sprocket delivers an excellent balance of reduced unsprung weight and reliable power transfer from the chain to the rear wheel.

Key Features:

• 40 teeth — ideal for fine-tuning final drive ratio for acceleration or top speed
• CNC-machined from high-strength aluminum alloy for reduced weight over stock steel sprockets
• Precision tooth profile ensures smooth, consistent chain engagement and reduced wear
• Hard anodized finish for corrosion resistance and extended service life
• Direct bolt-on fitment for compatible Vortex sprocket carriers and OEM hubs
• Manufactured to strict tolerances for proper chain alignment

Vortex is a trusted name in motorcycle drivetrain components, and the 840CZBV4-40 rear sprocket upholds that reputation with race-proven design and quality construction. Whether replacing a worn stock sprocket or adjusting your bike's gearing, this aluminum sprocket is a dependable performance choice.