Indoor cycling, often called spinning, is a form of exercise with classes focusing on endurance, strength, intervals, high intensity (race days) and recovery, and involves using a special stationary exercise bicycle with a weighted flywheel in a classroom setting.
For bicycle racing on banked indoor circuits, see Track cycling and Velodrome. For the indoor bicycle sport with a format similar to football, see Cycle ball. For the indoor bicycle sport with a format similar to ballet or gymnastics, see Artistic cycling.