Vortex 840CZR-39 Aluminum Rear Sprocket 39-Tooth for Aftermarket Wheels

The Vortex 840CZR-39 is a lightweight aluminum racing rear sprocket designed specifically for aftermarket wheel applications such as BST carbon fiber wheels. This precision-engineered 39-tooth sprocket features a bolt pattern with 5 holes (10mm) on a 100mm pitch circle diameter (PCD) and 76mm sprocket ID, ensuring proper fitment for high-performance motorcycle applications.

Key Features:

• 100% CNC machined in the USA from specially formulated aluminum alloy
• Silver anodized finish to prevent corrosion and maintain appearance
• Vortex patented tooth design increases sprocket longevity and wear resistance
• Lightweight construction reduces rotating mass for improved acceleration and performance
• 39-tooth configuration for optimized gearing options
• Precision-machined to the tightest tolerances for smooth chain engagement

Vortex Racing has been manufacturing top-quality racing components since 1995, with products tested extensively on the track by professional race teams worldwide. The 840 series sprockets are engineered for riders who demand absolute quality and performance from their drivetrain components.