A velodrome is a purpose built cycling venue containing a banked oval track designed primarily for track cycling competitions. The track is normally constructed from timber or a synthetic material and consists of two straights connected by steeply banked curves. Riders use specialised track bicycles that generally have a single fixed gear and no conventional freewheel, meaning the pedals continue to rotate with the rear wheel.
The banking allows riders to maintain speed around the curves while reducing the risk of sliding outward when travelling at high velocity. Velodromes can be indoor or outdoor and vary in dimensions, although international competition tracks are built according to detailed technical specifications. The central purpose of the velodrome is to provide a controlled environment for high speed cycling events.
The banked geometry is the defining feature of a velodrome. The track surface rises significantly towards the outer edge of the bends, creating an inclined plane that helps riders negotiate curves at speed. Riders select different lines depending on their speed, tactical position and the type of event. The lowest inner line is generally associated with the shortest measured racing distance, while higher lines increase the distance travelled around the curve. Track cyclists must therefore understand both geometry and tactical positioning. Entering a steeply banked curve too slowly can require difficult adjustments, while descending or moving toward the inner line at speed requires careful control to avoid interfering with another rider.
Velodrome tracks are measured around a specified reference line, commonly the measurement line near the inner part of the track, and track length affects the number of laps required for an event. Olympic and world championship venues have commonly used 250 metre tracks in the modern era, although other track lengths exist. Track geometry includes the width of the racing surface, transition zones between straights and bends and the degree of banking.
The construction must provide a smooth and predictable surface because cyclists can travel at very high speeds while making close tactical manoeuvres. Even small irregularities can affect handling and safety. Track markings identify measurement lines, sprint lines, pursuit lines and other areas used for particular events.
Velodromes host a wide range of track cycling disciplines. Sprint events include individual sprint and team sprint, where acceleration, positioning and tactical timing are crucial. Keirin involves riders following a pacing vehicle before a high speed sprint. Endurance events include individual pursuit, team pursuit, points races, scratch races, elimination races and omnium events, with each format requiring different combinations of speed, endurance and tactics. Madison racing involves teams of two riders and distinctive relay exchanges in which one rider takes over through a controlled hand sling. The range of events means that the same physical venue supports both short explosive competition and prolonged endurance racing.
Track cycling bicycles differ from ordinary road bicycles in several important respects. A track bicycle normally has a fixed gear, meaning there is no freewheel mechanism and riders cannot coast while the bicycle is moving. Brakes are generally absent in formal track racing because riders regulate speed through pedalling and aerodynamic control. The bicycles are highly optimised for low aerodynamic drag and efficient power transfer. Different events can favour different gearing choices and equipment setups. Modern elite track cycling also uses aerodynamic clothing, specialised wheels and advanced materials. Equipment regulations are controlled by governing bodies so that technological developments do not undermine competitive comparability or create excessive equipment based advantages.
Velodromes have a long history connected to the development of organised cycling in the late nineteenth and early twentieth centuries. Early cycling tracks could be constructed from wood, concrete or other materials and were used for racing before modern international standardisation. Indoor velodromes became increasingly important because they provided protection from weather and allowed more consistent conditions for major events. Advances in structural engineering allowed increasingly steep banking and sophisticated track geometry. Modern Olympic velodromes are often large multi purpose buildings with spectator seating, media areas, athlete facilities and technical infrastructure surrounding the track. The venue has therefore evolved from a simple racing circuit into a highly specialised international sporting facility.
A velodrome differs from a road racing course because its track is permanent, banked and specifically engineered for track bicycles. It differs from a running track because its surface and geometry are designed for bicycles and its curves are heavily banked. It also differs from a general cycle circuit, which may be outdoors on relatively flat or road like surfaces. The steep banking is not decorative. It allows riders to maintain speed while producing the lateral forces needed to follow the curve. A velodrome can therefore support very close racing at high speed while keeping riders within a controlled physical environment.
A velodrome is fundamentally a specialised high speed cycling facility whose banked track, markings, surface and supporting infrastructure are designed around track cycling. Its geometry determines racing lines, lap distances and tactical possibilities, while its equipment and timing systems permit precise measurement of performance. Different events place contrasting demands on riders, from explosive sprinting to sustained endurance and complex team tactics. Modern velodromes are highly engineered venues that combine track construction, spectator architecture, safety systems, timing technology and athlete facilities. The defining feature remains the permanent banked cycling track that enables regulated racing at high speed.
