Vortex 840AZL-51 Aluminum Rear Sprocket 51 Tooth

The Vortex 840AZL-51 is a lightweight aluminum racing rear sprocket featuring 51 teeth, designed for high-performance motorcycle applications. This sprocket is part of Vortex's premium 840 series, engineered specifically for aftermarket racing wheels and performance applications.

Key Features:

• 100% CNC machined in the USA from specially formulated aluminum alloy
• 7075-T6 aerospace-grade aluminum construction for optimal strength-to-weight ratio
• Patented saber tooth groove design increases sprocket longevity
• Anodized finish prevents corrosion and ensures long-lasting appearance
• Designed for aftermarket racing wheels including BST applications
• Significantly lighter than steel sprockets to reduce unsprung weight
• Precision-machined to tightest tolerances for optimal chain engagement

Vortex Racing has been manufacturing premium motorcycle racing components in the USA since 1995. Each sprocket is crafted with race-proven engineering and tested by professional racing teams worldwide. The unique tooth profile allows the chain to roll smoothly on and off the sprocket, reducing wear, noise, and friction while maximizing power transfer. Ideal for road racing, track day enthusiasts, and riders seeking weight savings without compromising durability.