Old rivals and new challengers clash in the Czech Republic for the first race on the 2017 World Cup circuit.

The world’s best cross-country MTB racers kick off the new season in the Czech Republic.

The racing action is hot as the best men in XCO mountain biking battle it out on the difficult track.

A 4.1km course through the rolling countryside of the Czech Republic awaits the racers in Nové Město.

In a post-Olympic season, team changes are not uncommon. Catch up on some of the bigger roster shifts of 2017.

For nearly a decade, one rivalry has defined the XCO World Cup scene: Nino Schurter versus Julien Absalon.

As the U23 World Champion in 2016, Jenny Rissveds stormed onto the Elite Women’s XCO circuit in 2017.

Max Stöckl goes for a hill of a ride as he attempts to break the world speed record on a mountain bike.

A two-day adventure race pushes athletes to their limits with a brutal course in a spectacular setting.

Ride along with Tomáš Slavík during his heart-pounding tear through the streets of Valparaíso, Chile.

Claudio and Rob, the commentating team for the UCI World Cup, need to get in shape for the 2016 season.

The second phase of the boot camp designed to prepare the UCI World Cup commentators for the 2016 season.

A self-described girly-girl who rides like a beast, Tahnée Seagrave is making big moves in the DHI world.

The dominant force in DHI hasn't been riding mountain bikes for long, but has spent his life on two wheels.

In the woods of British Columbia, Canada, Brandon and his friends live in a freeride mountain biking paradise.

Aaron Gwin is a pro on the event course, but he takes his talents off-road in this California trail session.

American mountain bike racer Curtis Keene discusses the differences between enduro and downhill MTB.

A group of mountain bikers don't let snow get in the way of a good time as they rip through a frosty forest.

Refresh your memory on what happened in the UCI Mountain Bike World Cup 2017 before the 2018 season kicks off.

Check out the highlight show from the final stop of the UCI Mountain Bike World Cup 2018 in La Bresse, France.

The top women in XCO mountain biking battle it out in the hopes of being crowned this year's World Champion.

The top men in XCO mountain biking battle it out in the hopes of being crowned this year's World Champion.

Watch Emily Batty test out the cross-country course at Lenzerheide, Switzerland ahead of the main race.