Vortex 427ZRV4-42 VTX Aluminum Rear Sprocket Pitch Sprockets - 428 42T

The Vortex 427ZRV4-42 is a lightweight, high-performance aluminum rear sprocket designed as a direct replacement or performance upgrade for motorcycles using a 428 pitch chain. Featuring 42 teeth, this sprocket is part of Vortex's popular ZRV4 series, machined from 7075-T6 aluminum and finished with a hard anodized coating for improved wear resistance and corrosion protection.

Vortex sprockets are CNC-machined to tight tolerances, ensuring smooth, precise chain engagement and consistent power transfer from the engine to the rear wheel. The hard anodized surface significantly extends service life compared to standard anodized aluminum sprockets, making this a durable choice for both street and track applications.

Key Features:

• Material: 7075-T6 aircraft-grade aluminum for maximum strength-to-weight ratio
• Finish: Hard anodized coating for enhanced wear and corrosion resistance
• Chain Pitch: 428
• Tooth Count: 42 teeth
• Series: ZRV4 — Vortex's lightweight performance sprocket line
• CNC-machined for precise fitment and smooth chain engagement
• Significant weight savings over OEM steel sprockets
• Direct bolt-on replacement — no modifications required

The Vortex 427ZRV4-42 rear sprocket is an excellent choice for riders looking to reduce unsprung weight and improve throttle response while maintaining reliable, long-lasting performance.