Vortex 641ZK-40 Rear Sprocket 40 Tooth Black Aluminum

The Vortex 641ZK-40 is a high-performance aluminum rear sprocket designed for sport bikes and racing applications. Manufactured from premium 7075 T6 billet aluminum, this 40-tooth sprocket delivers exceptional strength while reducing rotating mass for improved acceleration and power transfer.

Key Features:

• 40 teeth for optimized gearing
• 7075 T6 billet aluminum construction for maximum strength-to-weight ratio
• 100% CNC machined with precision tolerances
• Saber tooth groove design for increased sprocket longevity
• Black finish for corrosion resistance and aggressive styling
• Lightweight design reduces unsprung weight
• Vortex patented tooth design unlike any other sprocket

Vortex Racing has been manufacturing top-quality motorcycle racing components since 1995. Each sprocket is made to the tightest tolerances with direct feedback from professional race teams worldwide, ensuring proven performance on the track and street.