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This page explains what governing bodies, standards bodies and road authorities publish. It is not a substitute for cycle training from a qualified instructor, for a qualified bike mechanic, or for medical advice.
Which edition
Every article cited here is from UCI Part 2 in the version on 1 July 2025. A Japan Cycling Federation edition lists later amendments applying on 1 November 2025, 1 January 2026 and 19 October 2026, which we have not read. The UCI's current text and the race's own regulations decide on the day.
Calendar and season
International road races are entered on the UCI calendar by class (article 2.1.001). The UCI WorldTour and UCI Women's WorldTour calendars are drawn up by the Professional Cycling Council and proposed to the UCI Management Committee for approval. The road season runs from the day after the previous year's final World Championships or WorldTour event to the end of the year's final one, with the dates fixed each year by the Management Committee.
Race classes
Article 2.1.005 lists the men's international classes. At the top is the UCI WorldTour (classes 1.UWT and 2.UWT), then the UCI ProSeries (1.Pro and 2.Pro), then the continental circuits, the Europe, America, Asia, Oceania and Africa Tours, with classes 1.1, 2.1, 1.2 and 2.2 and Nations' Cup races. In the 2025 tables the "1." classes appear among one-day races and the "2." classes among stage races; the edition we read does not state that convention in a single sentence, so it is our reading of the tables.
Teams
Part 2 names the team types as UCI WorldTeams, UCI Women's WorldTeams, UCI ProTeams, UCI Women's ProTeams and UCI continental teams, with national, regional, club and mixed teams allowed in lower classes (articles 2.1.005 and 2.2.001). A UCI team and its registered development team may not ride the same race (article 2.2.001). For 2026 the UCI registered 18 UCI WorldTeams, 16 UCI ProTeams, 14 UCI Women's WorldTeams and 7 UCI Women's ProTeams.
How many riders each team starts with
Article 2.2.003 sets the general rule: the organiser fixes the number of starting riders per team, at least 4 and at most 7, the same for every team, with special provisions for the World Championships and the Olympic Games. The top levels have their own figures:
| Event (UCI Part 2, 1 July 2025, art. 2.2.003) | Riders per team |
|---|---|
| UCI WorldTour, Grand Tours | 8 |
| UCI WorldTour, other events | 7 |
| UCI ProSeries, men elite, one-day and stage races | 6 or 7, set by the organiser |
| Women's WorldTour and ProSeries, one-day races | 6 |
| Women's WorldTour stage races of five stages or fewer | 6 or 7, set by the organiser |
| Women's WorldTour stage races of six stages or more | 7 |
| Women's ProSeries stage races | 6 or 7 |
| Other events | Set by the organiser, 4 to 7 |
Article 2.2.003 bis, introduced on 1 January 2018, sets a floor: where the team size is 4, 5 or 6, a team may not start with fewer than 4; where it is 7 or 8, not fewer than 5.
Field sizes
Article 2.2.002 caps the field at 200 riders at the Olympic Games, World and continental championships and national championships, and at 184 in men's Grand Tours. The same table has other caps that we could not align reliably from the document's layout, so we do not give them. In women's racing, the article (text modified 1 April 2025) sets a minimum of 90 starting riders in UCI Women's WorldTour, ProSeries and class 1 events and 40 in other international women's events.
One-day race distances
Article 2.3.002 sets distances, subject to the course profile:
| Race | Distance (UCI Part 2, 1 July 2025) |
|---|---|
| Olympic Games and World Championships, elite men | 250 to 280 km |
| Olympic Games and World Championships, elite women and under-23 men | 150 to 180 km |
| Olympic Games and World Championships, under-23 women and junior men | 110 to 140 km |
| Olympic Games and World Championships, junior women | 70 to 100 km |
| Men's UCI WorldTour one-day races | Set by the Professional Cycling Council |
| Continental circuits, 1.Pro and 1.1, elite men | Maximum 200 km, unless the Management Committee permits more |
| Continental circuits, 1.2 | Maximum 180 km |
| Women's WorldTour one-day races | Maximum 160 km |
Courses and the final kilometre
A race run entirely on a circuit needs a circuit of at least 10 km (article 2.3.007). Part of an event may be held on a shorter circuit of at least 3 km, with limits on the number of laps (article 2.3.008). The last kilometre is marked with a red triangle (article 2.3.005); the name "flamme rouge" is common usage and does not appear in the rule.
What riders may do for each other
Article 2.3.012 separates small favours from team help. Any riders, whatever their team, may help each other in minor ways, such as lending or swapping food, drink, spanners or accessories. Lending tyres or bikes, and waiting for a rider who has been dropped or has crashed, is allowed only between team-mates. Pushing another rider is forbidden in every case, on pain of disqualification.
Time trials
Part 2 counts time trial stages, individual and team, among the parts of a stage race (article 2.6.001), and Wikipedia describes the time trial bicycle as a racing bike for solo races against the clock. At the Los Angeles 2028 Olympic Games, the UCI says road cycling will have two events, the road race and the time trial, with a quota of 180 road athletes. The bikes and riding positions allowed in time trials are set by the UCI's equipment rules, explained on the time trial position rules page.
Where this leads
A road race that runs over at least two days with an overall time classification is a stage race, and Part 2 gives it its own set of rules on stage lengths, rest days, jerseys and the 3 km rule for crashes near the finish. Those are on the stage races and jerseys page. Who may enter which race, by licence and age, is on the licences and categories page.