Peloton

The peloton is the main pack of riders in a road cycling race, moving together as one group. Its defining feature is aerodynamics: riders tucked inside the bunch spend far less energy than someone alone at the front, because the mass of bodies ahead breaks the wind. That drafting effect is why so many breakaways get reeled in — a handful of riders off the front simply cannot match the efficiency of an organised peloton that decides to chase. The peloton is also a living tactical organism. Teams mass at the front to protect a leader, control the pace or set up a sprint; crosswinds can shatter it into echelons; and a crash near the back can wreck a favourite's race through no fault of their own. Knowing how the bunch conserves energy, when it accelerates, and why it tolerates some breakaways but not others is the key to understanding why road racing looks the way it does. The rules that shape all of this, from drafting to race radios, are set by the UCI, cycling's world governing body.