Pure Fix Premium Fixed Gear Single Speed Bicycle City street ready fixed gear single speed fixie bicycle with pre-wrapped drop bars Pro series triple-butted 4130 full chromoly frame and fork, for a light, durable and faster ride Flip-Flop rear wheel hub allows changing from single-speed to fixed gear with ease 700 x 28C thick slick 30mm deep dish tires for speed, comfort, and flat protection in urban environments Brand name components include Kenda tubes, Wellgo pedals, KMC chain, Tektro front brake