Mountain Biking vs Mountain Biking (World Series) — Same Game, Different Rules

Bicycle frame: rigid or suspended; minimum wheel diameter 26" (66 cm), max 29" (74 cm); 27.5" and 29" dominant in pro XCO; Hydraulic disc brakes required at UCI level (front + rear); Handlebar width limited to 1000 mm max

All UCI equipment standards apply (frame, wheel sizes 27.5"/29", hydraulic disc brakes, helmet, tyre specs); Series-mandated tracking transponders fitted by series technical staff; WBD broadcast crew may attach approved on-bike cameras at select events

XCO: circuit 4-6 km/lap, 4-7 laps, ~80-100 min target winning time; mix of climb/descent/technical features; XCM: point-to-point or large loop, 60-160 km; XCE: short (~1-1.5 km) circuit with technical features; heat-format eliminator

Series rounds at homologated UCI venues across Europe, North America, Oceania; 2026 calendar includes ~7-9 rounds (XCO/XCC), ~7-9 rounds (DHI), ~7-9 rounds (EDR); Some rounds co-host XCO + DHI + EDR weekends (e.g., Val di Sole, Leogang)

Individual sport; nations may field teams for relay events; UCI categories: Elite Men, Elite Women, U23 Men/Women, Junior Men/Women; Officials: race director, commissaires (line judges, technical, finish), medical staff, course marshals

Elite Men, Elite Women, U23 Men, U23 Women categories per discipline; Series entry restricted to UCI Elite-tier license holders + UCI quotas per nation; Officials: UCI Race Director + Technical Delegate + WBD broadcast liaison

Riders gridded by UCI ranking; mass start with countdown; Riders complete prescribed laps; first across finish line wins; Lapping: lapped riders pulled when caught (XCO)

XCO round: single-mass-start, 4-7 laps, 80-100 min target winning time; XCC (short track): separate short-track race on Friday, used for XCO grid seeding Sunday; DHI round: seeding run + finals run; fastest aggregate time wins

Individual races: finishing time + position; UCI World Series: points awarded per round → series standings; series leader's jersey awarded; UCI World Rankings: rolling 12-month aggregate; informs Olympic qualification

Round points: top-30 finishers earn points on a sliding scale (250 winner → 1 for 30th, typical scale); Series standings: aggregate of best 7 of 9 round results; Series Champion: highest series total at season's end → awarded series jersey + integrated into UCI MTB World Ranking

Cutting course: time penalty or disqualification; Outside assistance: outside tech zones — disqualification; Mechanical doping (motor): immediate disqualification + suspension + fine

All UCI MTB violations apply (course-cutting, outside assistance, mechanical doping); Series-specific: missed round without prior medical certificate → forfeit of round points + potential next-round grid penalty; Broadcast non-compliance (refusal to participate in on-bike camera or interview) → s...

Mandatory CE-certified helmets; full-face helmet + knee/elbow pads required for DHI, 4X, PUT. Course inspection prior to competition; commissaires authorized to neutralize sections in unsafe conditions.

All UCI MTB safety standards apply (helmets, full-face for DHI/EDR, course inspection, on-site medical). Series-specific upgrades: dedicated medical helicopter on standby for DHI/EDR rounds; tighte...