Industry Nine Freehub bodies are machined from aluminum, contain all necessary pawls, springs and bearings for fit and forget installation. Kits include freehub, bearings, inner spacer, pawls, and springs. 3 degree engagement is achieved through the use of an innovative six pawl freehub, which utilizes phased engagement to double the number of engagement points from 60 to 120. Freehub compatibility - 9/10 speed freehub or XX1 compatible freehub options available and interchangeable. Lower drag - new drive ring and pawl geometry, relocated bearings, and a new seal system dramatically reduce freehub drag while coasting. Not compatible with Torch Road or Torch Classic Road hubs.