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

Iditarod, the world's most brutal solo bike race. A 350km grueling mountain road endurance test for riders who must brave extreme cold and scarce supplies in Alaska's tundra.

Location: Alaska

Date: February 28th

Must-watch reason: Only those with extraordinary willpower can complete this arduous race, as the harsh Alaskan winter environment is not for the faint of heart.

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

Crankworx © Graeme Murray/Red Bull Content Pool

CranKworx Rotorua

The revolution of mountain biking culture continues at Crankworx Rotorua. A five-day event featuring new formats and big-mountain biking.

Location: Rotorua, New Zealand

Date: March 9-13th

Must-watch reason: The first springtime enduro event at CranKworx Rotorua takes place on an extremely steep slope style course. Will we see another rising star emerge after Brett Rheeder's victory last year?

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

Loic Bruni © Lukas Pilz

UCI MTB World Cup

Location: Lourdes, France

Date: April 9-10

Must-watch reason: Loïc Bruni, a young French rider who won his first World Championship title in the same season he debuted last year. Can he maintain his dominance and claim victory again?

The men start the XCO World Cup in Nove Mesto.

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

UCI XCO MTB World Championships

This marks a historic split between downhill racing and cross-country events within UCI championships. Held separately from July to August across different locations worldwide.

Location & Date (XCO): June-end to early July - Nové Město na Moravě (Czech Republic)

Must-watch reason：When all eyes are on Rio Olympics next summer，this year’s championship may witness unknown dark horses rise to prominence，such as Mathias Fluckiger or his brother Lukas potentially breaking through with victories.

Coco Zurita performs BMX Vert Finals at X Games Austin

X Games

Celebrating its third anniversary hosting events in America，the X-Games offers thrilling competitions including BMX Park、Vert、and Dirt races.

Location & Date：Austin, Texas - June2nd-5th

Must-watch reasons：Daniel Sandoval took home gold medals during last year’s park competition; Daniel Dhers has dominated five times before but remains worth watching due to extensive experience.

环法自行车赛

环法自行车赛迎来第103届比赛。该项活动持续3周，将爬上著名的旺图山（Mont Ventoux）。去年冠军Chris Froome是位全能公路骑手，他也成为了本届赛事夺冠热门.

比赛地点：法国

比赛日期：7月2至21日

必看理由：Peter Sagan，被外界视为黑马，但斯洛伐克人的爬山技巧正不断进步，加之丰富的计时赛经验，让他成为值得关注的选手.

Mikhail Ignatyev from Russia performs during Red Bull Trans-Siberian Extreme stage Moscow-Kostroma

Red Bull Trans-Siberian Extreme

与传奇铁路西伯利亚遥相呼应，这场分段越野大赛将从莫斯科出发，横跨俄罗斯，全程9159公里.

比赛地点：从莫斯科到佛拉迪沃斯托克（全长9195公里）

必看理由：“世界最长分段越野大赛”，由一支来自世界各地的队伍组成，他们将在极端环境中展现惊人的毅力和体能。

Brandon Semenuk tuck no-hander at Red Bull Joyride

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

Joyride

加拿大Whistler单车公园中的Boneyard再次成为世上最好的Slopestyle舞台。

比赛地点及日期待定

Aaron Gwin puts in some practice on World Cup finals day Val di Sole 2015

UCI DH MTB Worlds Championships Location & Date (Val di Sole): September8-11

In summary:

Iditarod – The world's toughest solo bike race spanning over three days where participants have to navigate through treacherous terrain amidst subzero temperatures.

CranKworx Rotorua – An exhilarating five-day event that celebrates big-mountain biking culture with various formats catering to enthusiasts.

UCI Mountain Bike Cross-Country (XC) – Witnessing athletes battle it out over six stages spread across Europe while they chase their dreams of becoming champions.

UCI Downhill Mountain Biking (DH) – Racing down steep slopes against time trials awaits riders seeking thrills while pushing themselves beyond limits.

These captivating events promise adrenaline-packed action that would leave you breathless!