Vortex 840-55 Silver 55-Tooth Rear Sprocket for BST Wheels

The Vortex 840-55 is a lightweight aluminum racing rear sprocket designed specifically for BST aftermarket wheels. This 55-tooth sprocket is engineered for 530 chain applications and features Vortex's patented tooth design that maximizes chain engagement and extends sprocket lifespan.

Key Features:

• 100% CNC manufactured in the USA from specially formulated aluminum alloy
• Silver anodized finish prevents corrosion and enhances durability
• Patented tooth design provides optimal chain hold and release characteristics
• Precision machined to the tightest tolerances for racing applications
• Lightweight construction reduces rotating mass for improved acceleration
• Designed for BST aftermarket wheel fitment

Vortex Racing has been manufacturing premium motorcycle racing components since 1995. Owned and operated by motorcycle racers, each component is tested on the track with direct feedback from professional race teams worldwide to ensure absolute quality and performance.