Vortex 715ZR-51 Steel Rear Sprocket Pitch Sprockets - 51-Tooth 520

The Vortex 715ZR-51 is a 51-tooth steel rear sprocket with 520 pitch, engineered for motorcycle applications where durability and consistent performance are the priority. Vortex Racing, a U.S.-based manufacturer since 1995, produces this sprocket to the tightest tolerances using high-quality carbon steel alloy formulated to Vortex's own specifications.

Key Features:

• 51 teeth, 520 pitch — designed for use with 520-series drive chains
• Carbon steel construction — laser-cut from carbon steel for extended service life
• Electroplated satin black finish — corrosion-resistant coating for long-lasting appearance and protection
• Hardened teeth — induction-hardened tooth profile for increased wear resistance and longevity
• Lightening holes — strategically drilled to reduce rotating mass without sacrificing strength
• Vortex patented tooth design — proprietary profile engineered to extend sprocket life and improve chain engagement
• USA manufactured — made domestically to race-grade quality standards

Vortex steel sprockets are the preferred choice for riders who demand reliability over extended mileage, offering superior longevity compared to aluminum alternatives. The satin black electroplated finish resists corrosion even in harsh riding conditions. This sprocket is compatible with standard 520-pitch drive chains and is a direct bolt-on replacement for the correct application.