Vortex 151ZB-43 520 Steel Rear Sprocket 43-Tooth Black

The Vortex 151ZB-43 is a 43-tooth, 520-pitch steel rear sprocket finished in an electro-plated satin black coating for corrosion resistance. Built to Vortex Racing's exacting standards, this sprocket is machined from a specially formulated carbon steel alloy that delivers outstanding strength, durability, and longevity over thousands of miles of street or track use.

Key Features:

• 520 pitch steel rear sprocket — 43 teeth
• Carbon steel alloy manufactured to precise Vortex specifications
• Electro-plated satin black finish to prevent corrosion
• Vortex patented unique tooth geometry extends sprocket life
• Precision-machined for true concentricity and quiet operation
• Direct OEM bolt-pattern replacement — no modifications required

Vortex Racing sprockets are a trusted upgrade for riders seeking a durable, performance-oriented replacement over stock components. The 151ZB-43 is the black-finish counterpart to the silver 151-43, offering the same proven construction with a stealthy appearance. Always replace the chain and front sprocket simultaneously to ensure even wear and maximum drivetrain life.