Primo Freemix freecoaster hub with hubguards. The Primo Freemix hub use's the durable KHE internals with an internal needle bearing which sits behind the clutch to reduce drag when coasting backwards. Comes with spare washers to adjust slack. When ordering let us know in the special instructions whether you would like the gap setup either large, medium or small & we can adjust this for you. Primo freecoasters are very tricky to adjust & we only recommend adjusting if you know what your doing section Product Specs HUB TYPE: Freecoaster AXLE: 14mm Male DRIVER: 9t SPOKE HOLES: 36h WEIGHT: 709g / 25oz