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

Iditarod, the most grueling single-ride challenge in the world. The race was once called Idiabike, a 350-kilometer endurance test of mountain roads and extreme temperatures with minimal supply, traversing Alaska's tundra.

Location: Alaska

Date: February 28th

Must-watch for its sheer brutality; only those with superhuman willpower can complete this treacherous race amidst Arctic winter conditions that are far from ordinary.

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

Crankworx Rotorua © Graeme Murray/Red Bull Content Pool

CranKworx Rotorua revolutionizes mountain bike racing culture in New Zealand. A five-day schedule and new competition formats await enthusiasts.

Location:Rotorua, New Zealand

Date: March 9th to March 13th

Brett Rheeder takes center stage as springtime slopestyle champion at CranKworx Rotorua. Will we see another star rise in this year's event?

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 Downhill World Cup Round:

Location: Lourdes, France

Date: April 9th to April 10th

The young French sensation Loïc Bruni claimed his first-ever world championship title last season. Can he maintain his lead and claim victory again?

The men start the XCO World Cup Nove Mesto.

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

UCI XCO MTB World Championship:

This marks a historic split between cross-country (XCO) and downhill races within UCI events. The cross-country championships take place from late June to early July in Czech Republic.

Location:Czech Republic

Date: June28th to July3rd

Nové Město might be where unknown talents emerge as they surprise everyone during Rio Olympics' attention-grabbing summer games.

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

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

X Games:

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

Location:Austin USA

Date:June2ndto6th

Daniel Sandoval seeks back-to-back victories while Daniel Dhers hopes for redemption after losing out last year.

环法自行车赛(Ride Around France)

103 years old! This iconic three-week tour de force is set to scale Mont Ventoux yet again. Last season's winner Chris Froome is an all-around powerhouse cyclist expectedly favored this time around.

Location :France

Date :July2ndto21st

Peter Sagan could become a dark horse contender with his impressive climbing skills and experience gained through various time trials throughout history!

Mikhail Ignatyev from Russia (left), Paolo Aste from Italy (center), Thomas John from Germany perform during Moscow-Kostroma leg of Red Bull Trans-Siberian Extreme

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

Trans-Siberian Extreme - The Longest Stage Race In The World!

Following legendary Siberia Railway tracks across Russia comes Trans-Siberian Extreme – spanning over an incredible distance of approximately 9159 kilometers!

Starting Point:Moscow Ending Point:Furulovka Village near Vladivostok Total Distance ≈9195 km Duration：7月5日至28日 Must-watch for its sheer adventure as riders conquer such immense distances under extreme conditions!