Vortex 452ZRV4-42 VTX Aluminum Rear Sprocket 42T

The Vortex 452ZRV4-42 is a 42-tooth VTX series aluminum rear sprocket designed as a high-performance replacement for sport and streetbike applications. Engineered by Vortex Racing — a trusted name in competitive and street riding — this sprocket delivers a lightweight, durable upgrade over heavy OEM steel units.

Key Features:

• 42-Tooth configuration for optimized power delivery and acceleration tuning
• Aircraft-grade aluminum construction reduces unsprung and rotating mass compared to stock steel sprockets
• Hard anodized finish for increased surface hardness, corrosion resistance, and long service life
• CNC machined to tight tolerances for precise fitment and smooth chain engagement
• Direct OEM replacement — bolt-on installation with no modifications required
• Compatible with standard chain pitch for the application

Vortex VTX aluminum sprockets are a popular choice for riders looking to reduce drivetrain weight and fine-tune gearing for track days or spirited street riding. The 452ZRV4-42 maintains Vortex's reputation for quality fit and finish at a competitive price point.