Vortex 803A-40 CAT5 Aluminum Rear Sprocket 40T

The Vortex 803A-40 is a 40-tooth CAT5 aluminum rear sprocket precision-engineered for sport bike and performance motorcycle applications. Manufactured from a specially formulated aluminum alloy to Vortex's exacting specifications, this lightweight sprocket delivers significant unsprung weight savings over steel alternatives without sacrificing durability or performance.

Key Features:

• 40-tooth aluminum construction for reduced rotating mass and improved throttle response
• 100% CNC machined in the USA to the tightest tolerances in the industry
• Unique Vortex tooth profile design engineered to maximize sprocket longevity and chain wear life
• Vortex patented sprocket geometry for consistent power transfer and smooth chain engagement
• Lightweight aluminum alloy formulated to Vortex's proprietary specifications for optimal strength-to-weight ratio
• Hard anodized finish for corrosion resistance and long service life

The Vortex 803A-40 rear sprocket is a direct-fit replacement and performance upgrade trusted by professional racers and serious street riders alike. Whether tuning final drive ratio for track performance or replacing a worn OEM sprocket, the 803A-40 delivers race-proven quality backed by Vortex's decades of motorsport engineering expertise.