Lone cyclist embarks on a frozen odyssey

Iditarod, the world's most grueling bike race, spans 350 kilometers of Alaskan wilderness in extreme cold and scarcity.

Location: Alaska

Date: February 28th

Must-see reason: Riders must possess superhuman willpower to complete this brutal challenge in the harsh Alaskan winter.

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

Crankworx Rotorua © Graeme Murray/Red Bull Content Pool

CranKworx Rotorua reformulates mountain bike culture with five days of racing, formats, and big-mountain culture.

Location:Rotorua, New Zealand

Date: March 9th -13th

Must-see reason：The first major mountain bike event of spring takes place at the slopestyle-focused CranKworx Rotorua. Last year's winner Brett Rheeder seeks to defend his title; will we see another rising star emerge?

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

Location: Lourdes, France

Date：April 9th -10th

Must-see reason：French young gun Loïc Bruni claimed his first UCI World Championship title last season; can he maintain his dominance on the podium?

The men start the 2015 XCO World Cup in Nove Mesto.

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

UCI XCO MTB World Championship separates cross-country and downhill events for the first time. The six-day event takes place from late June to early July in Czech Republic.

Location：Czech Republic

Date：June28th -July3rd

Must-see reason：As all eyes are on Rio Olympics this year，the world championships might witness an unknown dark horse emerging victorious. Mathias Fluckiger has a chance to succeed Nové Město successfully.

Coco Zurita performs at BMX Vert Finals during X Games Austin

X Games celebrates its third year in America by offering thrilling BMX Park, Vert & Dirt events.

Location:Austin，Texas，USA

Dates:june2nd -6th

Reasons not to miss it：

Daniel Sandoval won gold medal last year but Daniel Dhers is also a strong contender with abundant experience.

环法自行车赛 (Tour de France)

The iconic Tour de France enters its103rd edition this summer. A three-week competition featuring iconic climbs like Mont Ventoux awaits racers who have already proven their prowess through Chris Froome's victory last year as well as Peter Sagan’s climbing skills which continue to improve dramatically throughout each stage race experience that makes him an interesting choice for potential champions-to-be-watched-out-for among spectators worldwide!

Trans-Siberian Extreme follows legendary Trans-Siberian Railway route across Russia spanning over almost ten thousand miles from Moscow to Vladivostok! This extreme ride showcases riders' stamina beyond limits while pushing their bodies through such long distances where only true warriors survive!

Red Bull Joyride adds excitement by hosting biggest Slopestyle competitions ever held anywhere else around globe!

Brandon Semenuk tucks no-hander at Red Bull Joyride

Whistler Mountain Bike Park hosts Boneyard area for one more time before ending up being part of new generation festival experiences so look out! There is nothing more thrilling than watching top athletes compete against each other while trying new tricks or attempting never-before-seen stunts that leave fans speechless after witnessing these incredible feats performed live right before our very own eyes!