Mission's Deploy Freecoaster Hub gives you the opportunity to upgrade to a freecoaster style hub without having to break the bank. It's built with a 6061-T6 aluminium shell with a 14mm heat-treated chromoly axle for strength & durability. The Deploy Hub also features sealed bearings throughout & adjustable slack. section Product Specs HUB TYPE: Freecoaster AXLE: 14mm DRIVER: 9t DRIVE SIDE: Left Side Drive SPOKE HOLES: 36h WEIGHT: 623.7g (1.38lbs)