Lone cyclist embarks on a frozen odyssey

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

Location: Alaska

Date: February 28th

Must-watch for its sheer brutality; only those with extraordinary determination can complete this harsh challenge.

Tomas Zejda tackling the slopes at Crankworx Slopestyle in Rotorua, New Zealand on March 29th, 2015

Crankworx Rotorua © Graeme Murray/Red Bull Content Pool

Crankworx Rotorua showcases revamped mountain biking culture in New Zealand.

Location:Rotorua, New Zealand

Date: March 9-13th

Exciting changes include five days of racing, new formats, and thrilling courses. Will we see a new star rise to the top?

Loic Bruni competing at the 2015 Lourdes Downhill World Cup round in France's famous pilgrimage city

Loic Bruni © Lukas Pilz

UCI MTB World Cup takes place in Lourdes, France.

Location: Lourdes, France

Date: April 9-10th

Follow Loïc Bruni as he seeks to maintain his championship title after an impressive debut season.

The men start the XCO World Cup Nove Mesto.

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

UCI XCO MTB World Championship separates downhill and cross-country events for the first time ever. The cross-country event will take place from June 28th to July 3rd in Czech Republic.

Location: Czech Republic

Date: June-July (specific dates TBA)

Keep an eye out for Mathias Fluckiger or his brother Lukas who could potentially emerge victorious.

Coco Zurita performs at BMX Vert Finals during X Games Austin

Coco Zurita/X Games © Garth Milan/Red Bull Content Pool

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

Location: Austin USA

Date: June2nd-5th

Don't miss Daniel Sandoval defending his crown against formidable opponents like Daniel Dhers.

环法自行车赛 enjoys its prestigious reputation as it enters its103rd edition this July. The three-week event features iconic climbs such as Mont Ventoux. Last year's winner Chris Froome is favored again due to his all-around skills.

Location：France

Date：July2nd-21st

Peter Sagan might surprise everyone with his climbing prowess that continues to improve; watch him closely!

Mikhail Ignatyev from Russia performs during Red Bull Trans-Siberian Extreme stage Moscow-Kostroma on August16，2014

Red Bull Trans-Siberian Extreme © Denis Klero/Red Bull Content Pool

Trans-Siberian Extreme presents one of world’s longest multi-stage races spanning over Russia covering almost ten thousand kilometers!

Starting point：Moscow Ending point：Vladivostok (Total distance approximately nine thousand two hundred fifty miles)

Start date：July5日End date：July28日 Must-watch for witnessing athletes conquer extreme challenges across vast distances!

Brandon Semenuk tucks into a no-hander at Red Bull Joyride! Brandon Semenuk / Red Bull Joyride© Scott Serfas/Red Bul