Lone rider embarks on a frozen odyssey

Iditarod, the world's most grueling bike race, spans 350 kilometers of Alaskan wilderness in subzero temperatures and scarce supplies.

Location: Alaska

Date: February 28th

Must-watch for its sheer brutality; only the most determined riders can conquer this harsh environment.

Tomas Zejda tackles Rotorua's slopestyle at Crankworx New Zealand on March 29th, 2015

Crankworx Rotorua © Graeme Murray/Red Bull Content Pool

CranKworx Rotorua revamps mountain bike culture in New Zealand. The five-day event features reformatted racing formats and big mountain biking culture.

Location: Rotorua, New Zealand

Date: March 9-13th

Catch the springtime opener of downhill racing at CranKworx Rotorua with its extreme slopestyle course. Will we see a new star rise to fame?

Loic Bruni competing at the Lourdes Downhill World Cup round in France in 2015

Loic Bruni © Lukas Pilz

UCI MTB World Cup showcases Loïc Bruni's dominance as he won his first World Championship title last season. Can he maintain his lead and claim victory again?

Location: Lourdes, France

Date: April 9-10th

The men start the XCO World Cup Nove Mesto stage.

Nove Mesto World Cup © Bartek Woliński/Red Bull Content Pool

UCI XCO MTB World Championship separates cross-country from downhill races for the first time ever. The Czech Republic hosts this six-day event from late June to early July.

Location: Czech Republic

Date: June 28 - July 3rd

Mathias Fluckiger has a chance to break away from competition during Nové Město.

X Games celebrates its third year in America with BMX Park, Vert & Dirt competitions.

Location: Austin, USA

Date: June 2-5th

Daniel Sandoval aims to repeat his park win while Daniel Dhers returns after five X-Games Park victories.

Tour de France marks its centennial edition with three weeks of racing that includes climbing iconic Mont Ventoux. Last year's winner Chris Froome is favored again due to his versatility as an all-around road cyclist.

Trans-Siberian Extreme follows Russia's legendary Trans-Siberian Railway over nearly ten thousand miles from Moscow to Vladivostok.

Brandon Semenuk performs no-hander at Red Bull Joyride.

Brandon Semenuk/Red Bull Joyride © Scott Serfas/Red Bull Content Pool

Whistler Mountain Bike Park becomes Slopestyle Showdown arena once more for Red Bull Joyride.

Location: Whistler Mountain Bike Park (Canada)

Date (specific date TBA)

A thrilling showdown between reigning champion Brandon Semenuk and rising talent Brett Rheeder unfolds on Whistler Mountain Bike Park’s Boneyard stage during Redbull.com updates latest news).

Aaron Gwin practices before finals day in Val di Sole during UCI DH MTB Worlds - Aaron Gwin/Bartek Woliński/Red Bull Content Pool

Val di Sole hosts UCI DH MTB Worlds where Aaron Gwin seeks elusive rainbow jersey after dominating UCI DH circuit without one yet; could this be his year?