Vortex 825ZGV4-40 VTX Aluminum Rear Sprocket 40T

The Vortex 825ZGV4-40 is a 40-tooth VTX series aluminum rear sprocket designed as a high-performance replacement for sport and street motorcycle applications. Engineered by Vortex Racing — a brand trusted by professional racers and serious enthusiasts — this sprocket delivers an exceptional balance of strength, weight savings, and durability.

Key Features:

• VTX Series Construction: Precision-machined from 7075-T6 aircraft-grade aluminum for maximum strength-to-weight ratio
• Hard Anodized Finish: Type II hard anodize provides corrosion resistance and surface hardness for extended service life
• 40-Tooth Configuration: Ideal for tuning final drive ratios to optimize acceleration or top-speed performance
• Precision CNC Machined: Tight tolerances ensure smooth, quiet chain engagement and consistent power transfer
• Lightweight Design: Significantly lighter than OEM steel sprockets, reducing unsprung and rotating mass
• Direct OEM Replacement: Designed to match original bolt patterns and carrier dimensions for straightforward installation

The Vortex 825ZGV4-40 rear sprocket is a popular upgrade for riders looking to fine-tune their gearing without sacrificing quality. Compatible with the appropriate chain pitch for the application, it is manufactured to Vortex's exacting race-proven standards. Also referenced as the Vortex VTX aluminum sprocket, 40T rear sprocket.