Vortex 525ZB-39 Steel Rear Sprocket 525 Pitch 39 Tooth Black

The Vortex 525ZB-39 is a high-performance steel rear sprocket laser cut from carbon steel and finished in an extremely durable satin black finish. Electroplated satin black for corrosion resistance, this sprocket is designed for riders who demand maximum durability and extended service life.

Key Features:

• Made to precise specifications from steel ensuring concentricity and durability
• Lightening holes cut into the inner sections reduce rotating mass for improved acceleration and performance
• Case hardened with hardened teeth for increased durability
• Laser-cut carbon steel provides extended chainwheel life versus aluminum sprockets
• 525 pitch with 39 teeth for optimal power transfer
• Manufactured by U.S.-based Vortex Racing to the tightest tolerances with the best quality materials

When only the toughest sprocket will do, the Vortex steel sprocket delivers uncompromising strength and longevity. Ideal for street riders, track enthusiasts, and anyone seeking maximum durability from their drivetrain components.