Vortex 840-40 Silver 40-Tooth Rear Sprocket 530 Pitch

The Vortex 840-40 is a high-performance 40-tooth rear sprocket designed for 530-pitch chains and aftermarket BST wheels. This lightweight aluminum racing sprocket is 100% CNC manufactured in the USA from specially formulated 7075-T6 billet aluminum alloy, offering exceptional strength while reducing rotating mass for improved acceleration, deceleration, and directional changes.

Key Features:

• 40-tooth configuration for 530-pitch chain applications
• CNC machined with patented saber tooth groove design for increased longevity
• 7075-T6 billet aluminum construction for optimal strength-to-weight ratio
• Silver anodized finish prevents corrosion and provides a durable surface
• Sprocket dimensions: 5 mounting holes (10mm) with 100mm PCD and 76mm inner diameter
• Designed specifically for BST aftermarket wheel fitment
• Engineered for Motocross, Supercross, Road Racing, and Flat Track applications

Vortex Racing has been manufacturing premium motorcycle racing components since 1995, with each part made to the tightest tolerances and tested on the track by top professional race teams worldwide. The unique tooth profile on the 840 series sprockets optimizes chain hold and release characteristics while extending service life compared to conventional sprocket designs.