Lone rider embarks on a frozen odyssey © Brudder/Getty Images

Iditarod: The World's Most Brutal Bike Race

In the harsh, unforgiving landscape of Alaska, the Iditarod bike race pushes riders to their limits. This 350km endurance test takes place in extreme cold and with minimal supplies.

Location: Alaska

Date: February 28th

Must-watch for its sheer brutality and the mental fortitude required to complete it.

Tomas Zejda riding at Crankworx Slopestyle in Rotorua, New Zealand on March 29th, 2015

Crankworx Rotorua: A Revolution in Mountain Biking Culture

The reform of mountain biking will continue at Crankworx Rotorua in New Zealand. With a five-day schedule, new competition formats, and an emphasis on big-mountain culture.

Location: Rotorua, New Zealand

Date: March 9th-13th

Loic Bruni competing at the 2015 Lourdes Downhill World Cup round in the famous French city of pilgrimage

Loic Bruni © Lukas Pilz

UCI MTB World Cup - Lourdes

This prestigious event brings together some of the world's top downhill mountain bikers as they compete for victory. Loïc Bruni is one rider to watch after his impressive performance last year.

Location: Lourdes, France

Date: April 9-10

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

UCI XCO MTB World Championship - Nove Mesto

This marks a historic change for UCI as they separate cross-country and downhill events. The six-day championship takes place from late June to early July in Czech Republic.

Location: Czech Republic

Date: June 28-July 3

Coco Zurita performs at the BMX Vert Finals at X Games Austin

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

X Games Austin

Celebrating its third year in America, X-Games offers thrilling BMX Park , Vert & Dirt competitions.

Location: Austin, USA

Date: June 2-5

环法自行车赛 (Tour de France)

One of cycling's most iconic events returns for its centennial edition this summer. Spanning three weeks with climbs up famous landmarks like Mont Ventoux.

Location: France

Date : July2nd-21st

Mikhail Ignatyev from Russia performs during Red Bull Trans-Siberian Extreme© Denis Klero/Red Bull Content Pool

Trans-Siberian Extreme

A grueling test that spans over nine thousand miles across Russia from Moscow to Vladivostok.

Brandon Semenuk tuck no-hander at Red Bull Joyride

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

Red Bull Joyride

Whistler singletrack park hosts another epic Slopestyle showdown.

Aaron Gwin puts in some practice on World Cup finals day Val di Sole© Bartek Woliński/Red Bul