Vortex 427AZK-40 Rear Sprocket Aluminum Sprockets - CAT5 40-Tooth 530-Pitch

The Vortex 427AZK-40 is a lightweight aluminum racing rear sprocket designed and manufactured by U.S.-based Vortex Racing, featuring their iconic CAT5 design with 40 teeth and 530-pitch configuration. This sprocket features 100% CNC machined construction with saber tooth grooves and Vortex's patent pending design that provides superior performance and longevity.

Key Features:

• Constructed from high-quality 7075 T6 aluminum for exceptional strength-to-weight ratio
• Features anodized coating with bright color finish and machined silver highlights
• 100% CNC manufactured in the U.S.A. to precise tolerances
• Unique tooth design increases sprocket longevity
• Anodized to prevent corrosion and maintain appearance
• 530-pitch with 40 teeth for optimal gearing options
• Lightweight construction reduces rotating mass and aids in putting more power to the pavement

Each Vortex race component is made to the tightest tolerances with the best quality materials in the industry, tested on the track with direct feedback from top professional race teams worldwide. The CAT5 design features the signature two-tone machined look with cupped down face for weight reduction and hardened teeth for extended service life.

Note: Aluminum sprockets require regular maintenance for optimal performance. Chain should be cleaned and tensioned every 300-400 miles for street use.