Vortex 641ZK-39 Rear Sprocket 525 Pitch 39 Tooth

The Vortex 641ZK-39 is a high-quality rear sprocket engineered for 525 pitch chain applications. Precision-machined from durable steel and featuring a zinc-plated finish for corrosion resistance, this sprocket delivers reliable performance and extended service life.

Key Features:

• 525 pitch for compatibility with standard 525 chain
• 39 tooth configuration for optimized gearing
• Constructed from high-carbon steel for strength and durability
• Zinc-plated finish provides excellent corrosion protection
• CNC-machined to precise tolerances for smooth, quiet operation
• Self-cleaning tooth profile helps shed dirt and debris

Vortex sprockets are manufactured to OEM specifications or better, ensuring proper fit and reliable power transfer. The zinc coating not only protects against rust but also gives the sprocket a clean, professional appearance. Ideal for street riding, sport touring, and general replacement applications.