Vortex 840AZOV4-40 Aluminum Rear Sprocket Azure Anodized Sprockets - 40T

The Vortex 840AZOV4-40 is a 40-tooth aluminum rear sprocket designed as a high-performance replacement for motorcycles and powersports applications using an #840 chain pitch. Engineered for riders who demand precision fitment and reduced rotating mass, this sprocket is crafted from lightweight, high-strength aluminum alloy with a vibrant Azure anodized finish that resists corrosion and wear while adding a distinctive look to the drivetrain.

Key Features:

• 40-tooth count — optimized for balanced acceleration and top-end performance
• #840 chain pitch compatibility for precise chain engagement
• Lightweight aluminum construction reduces unsprung and rotating weight compared to steel sprockets
• Azure anodized finish provides corrosion resistance and a striking appearance
• CNC-machined to tight tolerances for smooth, consistent power transfer
• Precision-drilled bolt holes for accurate, rattle-free fitment
• Direct OEM replacement fit — no modifications required

Vortex is a trusted name in aftermarket sprocket manufacturing, known for producing race-quality components that meet or exceed OEM standards. The 840AZOV4-40 is an ideal upgrade or replacement for riders looking to improve drivetrain efficiency and personalize their machine's appearance.