Union Cycliste Internationale
Managed Sports
Cycling
UCI Cycling Regulations (Part I General Organisation effective 2024-01-01 + 2026 rule changes effective 2026-01-01: 65mm rim height cap, 400mm handlebar minimum, helmet ventilation requirements; per-discipline parts hosted at assets.ctfassets.net)
Cycling has been an Olympic sport since the first modern Games in Athens in 1896, making it one of only five sports contested at every Summer Olympics. The Union Cycliste Internationale (UCI), founded in Paris on April 14, 1900, is the world governing body for all competitive cycling disciplines....
Mountain Biking
2026 UCI Mountain Bike Regulations — covers XCO, XCM, XCE, XCC, DHI, PUT, 4X, Enduro formats
Mountain Biking is the off-road cycling discipline governed internationally by the Union Cycliste Internationale (UCI), defined in Part 4 of the UCI Cycling Regulations. UCI sanctions multiple race formats: Cross-Country Olympic (XCO) — the Olympic medal discipline since 1996; Cross-Country Marat...
Mountain Biking (World Series)
2026 WHOOP UCI Mountain Bike World Series — integrated multi-discipline circuit (XCO, XCC, DHI, Enduro, E-Enduro, Pump Track), Discovery Sports / WBD partnership since 2023
The UCI Mountain Bike World Series is the integrated premier competition circuit operating under the UCI's overall MTB regulatory framework. Launched in 2023 via a multi-year partnership between the UCI and Warner Bros. Discovery Sports (WBD), the World Series consolidates the previously separate...
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