Vortex 435ZK-40 CAT5 Rear Sprocket 520 Pitch 40 Tooth Black

The Vortex 435ZK-40 is a premium CAT5 (Category 5) rear sprocket engineered for high-performance sportbikes. This sprocket features a 520 pitch with 40 teeth and is constructed from lightweight, hardened 7075-T6 aluminum alloy with a durable black anodized finish.

Key Features:

• CAT5 construction uses 7075-T6 aluminum for optimal strength-to-weight ratio
• 520 pitch with 40 teeth for precise gearing options
• Black anodized finish provides corrosion resistance and extended wear life
• CNC-machined from solid billet aluminum for exceptional precision
• Self-cleaning mud grooves help maintain performance in all conditions
• Steel alloy inserts at mounting points prevent wear and elongation
• Significantly lighter than OEM steel sprockets for reduced rotating mass

Vortex CAT5 sprockets are designed to deliver race-proven performance with improved acceleration and reduced unsprung weight. The precision manufacturing ensures perfect chain engagement and extended chain life. Compatible with Yamaha YZF-R6 models from 2003-2018.