Vortex 838ZK-51 Rear Sprocket 51 Tooth 520 Pitch

The Vortex 838ZK-51 is a high-performance rear sprocket designed for 520 pitch chain conversion applications. This 51-tooth sprocket is precision-manufactured from high-quality steel and features Vortex's durable zinc plating finish for enhanced corrosion resistance and extended service life.

Key Features:

• 51 teeth for optimized gearing ratios
• 520 pitch chain compatibility
• Zinc-plated finish (ZK) for corrosion protection
• Precision-machined tooth profile for smooth chain engagement
• Heat-treated steel construction for maximum durability
• Self-cleaning mud groove design

Vortex sprockets are engineered to exact tolerances and undergo rigorous quality control testing. The zinc plating provides excellent wear resistance while maintaining a clean appearance. This sprocket is ideal for riders looking to change gearing for improved acceleration or top speed characteristics.