Vortex 245ZK-40 Rear Sprocket 40-Tooth Black Aluminum

The Vortex 245ZK-40 is a high-performance rear sprocket designed for riders seeking lightweight construction and race-proven durability. This 40-tooth sprocket is part of Vortex's CAT5 aluminum sprocket line, featuring their signature black anodized finish that combines style with corrosion resistance.

Key Features:

• 40-tooth configuration for optimal gearing performance
• Lightweight CAT5 aluminum construction reduces rotating mass for improved acceleration
• 100% CNC manufactured in the USA to precise tolerances
• Specially formulated aluminum alloy per Vortex specifications
• Black anodized finish prevents corrosion and provides a sleek appearance
• Vortex patented tooth design increases sprocket longevity
• Unique tooth profile reduces wear for extended service life

Vortex Racing sprockets are the choice of professional race teams worldwide, combining advanced engineering with premium materials. The reduced weight helps put more power to the pavement while improving throttle response and handling characteristics. Each sprocket is precision-machined to ensure perfect fitment and optimal chain engagement.