Vortex 425ZB-37 Steel Rear Sprocket 520 Pitch 37 Tooth Black

The Vortex 425ZB-37 is a high-performance steel rear sprocket designed for motorcycle applications requiring 520 pitch chain. This 37-tooth sprocket features precision laser-cut construction from carbon steel alloy, delivering exceptional durability and concentricity for reliable power transfer.

Key Features:

• 520 pitch design with 37 teeth for optimized gearing
• Laser-cut carbon steel construction for maximum strength
• Electro-plated satin black finish resists corrosion
• Hardened teeth ensure extended service life
• Lightening holes reduce rotating mass for improved performance
• Precision-manufactured to tight tolerances for concentricity
• Unique tooth design increases sprocket longevity

Vortex Racing sprockets are manufactured in the USA and tested on the track with feedback from professional race teams. The black finish not only provides corrosion resistance but also delivers a sleek appearance. The strategic lightening holes reduce rotational mass without compromising strength, making this sprocket ideal for both street and racing applications where durability and performance are essential.