Vortex 120ZR-45 Steel 520-Pitch 45-Tooth Rear Sprocket

The Vortex 120ZR-45 is a 520-pitch, 45-tooth steel rear sprocket designed as a direct-fit performance replacement for select motorcycle applications. Built to Vortex Racing's exacting standards, this sprocket delivers reliable power transfer and extended service life for street and track riders alike.

Key Features:

• 520 Pitch: Compatible with standard 520-series drive chains
• 45 Teeth: Optimized tooth count for balanced acceleration and top-end performance
• Steel Construction: Laser-cut carbon steel provides extended sprocket life compared to aluminum alternatives
• Case Hardened Teeth: Hardened tooth surfaces resist wear under high-load and high-RPM conditions
• Electroplated Satin Black Finish: Corrosion-resistant coating for long-term durability
• Drilled Lightening Holes: Reduces overall rotating mass without sacrificing strength (on most applications)
• 100% CNC Manufactured: Precision machined in the USA to the tightest tolerances

Vortex Racing has been a trusted name in motorcycle performance components for over 15 years, supplying top professional race teams worldwide. The 120ZR-45 rear sprocket is an ideal choice for riders looking to replace worn OEM gearing or fine-tune their final drive ratio for improved acceleration response.