By Category its" a cyclocross bike, but all-purpose versatility was at the forefront of designing and engineering this beast of a bicycle whose convertible technology allows you to ride from dirt to road and single-speed gearing that is easily upgradable to multi-speed. This bike is perfect for urban smashing or weekend trail-riding and all types of terrain in between. As one of the fastest growing bike categories of this decade Single-Speed CycloCross is exploding in popularity. There are no derailleurs or shifters for you to clean, adjust, or maintain. Today you want to ride single-speed, tomorrow you want gears. No problem - convertible is an understatement for the Amok. The bike"s rear hub comes ready to add on a cassette and the frame is ready to take on a derailleur, cable stops, or down tube shifters. This thing is ready for fenders, a rack, your choice of handle-bars and any kind of terrain you can find. This bike is set up with sealed bearing hubs for less rolling resistance than old style bearings and less frequent servicing when you ride in dirt or rain. Also the frame"s tire clearance allows for you to ride on super skinny race tires or a fatter dirt tire - it"s up to you.