Vortex 425ZK-42 Rear Sprocket 42 Tooth 425 Pitch

The Vortex 425ZK-42 is a high-quality rear sprocket designed for small-displacement motorcycles and mini bikes using 425 pitch drive chains. This 42-tooth sprocket is precision-manufactured from case-hardened steel for exceptional durability and wear resistance in demanding riding conditions.

Key Features:

• 42-tooth configuration for optimized gearing
• 425 pitch compatibility for standard 425 drive chains
• Case-hardened steel construction for maximum strength and longevity
• Zinc-plated finish resists corrosion and extends service life
• Precision-cut teeth ensure smooth, quiet operation and minimal chain wear
• CNC-machined for exact tolerances and proper chain alignment

Vortex sprockets are manufactured to meet or exceed OEM specifications, making them an excellent choice for both replacement and performance applications. The zinc plating provides additional corrosion protection, particularly important for riders in wet or humid climates.