Triathlon in bicycle, with the Olympic exception of Triathlon and the UIT races of the World-wide one, is very different from most of bicycles of professional races, since it does not allow the elaboration, reason why the runners not to cluster in a squad. More is resembled the individual races race against the clock. bicycles of Triathlon the general optimize for the aerodynamics, having special call handlebars aero-I sweep or tri-bars, aerodynamic wheels, and other components. bicycles of Triathlon to use a geometry specialized, among them a rake of the tube of raised as much to improve the aerodynamics very well and necessary the muscular groups for the operation (the equipment of Triathlon is also seen). At the end of the segment of the bicycle, the triathletes often cycle with a superior cadence (RPM), that serves partly to maintain muscles loose and flexible to run. It is created, nevertheless, that the main benefit for the cycling in Triathlon is that the stock of the effort is placed of out of proportion way in fibers of slow contraction of the muscle, avoiding that the sportsman is accumulated an oxygen debt before the race.