Inside Internal-Gear Hubs http://momentummag.com/gear/accessories/inside-internal-gear-hubs/ What goes on inside those mysterious, large internal-gear hubs at the center of your rear wheel? en-us <function copyright at 0x69035f0> Sun, 13 Jan 2013 18:49:25 GMT Invention http://momentummag.com/gear/accessories/inside-internal-gear-hubs/ 02223056-5df5-11e2-880b-1231394043be Sun, 13 Jan 2013 18:49:25 GMT