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 superhuman willpower can complete this treacherous race, as the Alaskan winter environment is extremely harsh and not for the faint of heart.

Crankworx Rotorua

The revolution of mountain bike racing continues at New Zealand's Crankworx Rotorua. Five days of competition, formats, and massive hill culture.

Location: Rotorua, New Zealand

Date: March 9th-13th

Must-watch reason: The first spring enduro championship will be held at the slopestyle extravaganza CranKworx Rotorua. Will we see another rising star emerge after last year's winner Brett Rheeder?

UCI MTB World Cup

A thrilling showdown in Lourdes, France. Loïc Bruni won his first-ever World Championship title last season; will he maintain his dominance on the podium?

Location: Lourdes, France

Date: April 9th-10th

Must-watch reason: French young gun Loic Bruni made history by winning the World Championship crown in his debut season. Can he keep up his unbeaten streak on the awards stage?

UCI XCO MTB World Championship

This marks a historic split between cross-country (XCO) and downhill (DHI) races at UCI Worlds for the first time ever. The XCO event takes place from late June to early July in Czech Republic.

Location: Czech Republic

Date: June 28th-July 3rd

Must-watch reason：As global attention shifts to Rio Olympics next year，this annual event may surprise us with unknown dark horses emerging victorious among numerous competitors like Mathias Fluckiger and Lukas Fluckiger who have chances to make their mark successfully in Nové Město.

X Games Austin

Celebrating its third American edition，the X-Games offers an unforgettable experience with BMX Park、Vert、and Dirt competitions.

Location：Austin，USA

Date：June2nd-5th

Must-watch reason：Daniel Sandoval won gold medal at park events last year but shouldn't be overlooked is Daniel Dhers who has five-time champion status under belt along with extensive big-race experience that makes him also a strong contender worth keeping an eye on during this series.

环法自行车赛

享誉盛名的环法自行车赛将于今年7月迎来第103届赛事。这个历时3周的比赛将会爬升著名地标旺图山(Mont Ventoux)。去年冠军 Chris Froome 是一位非常全面的公路车手，他也成为本届赛事的夺冠热门.

比赛地点：法国

比赛日期：7月2至21日

必看理由：世界冠军、前红牛车队车手Peter Sagan常常被外界视为赛事中的一匹黑马。但极具魅力的斯洛伐克人的爬山技巧正不断进步，丰富的计时赛经验让他成为赛事里值得关注的选手.

Red Bull Trans-Siberian Extreme

与传奇铁路西伯利亚遥相呼应，Trans-Siberian Extreme比赛是世界上最长的分段赛。从莫斯科出发，横跨俄罗斯，全程9159公里的范围。

Location & Date:

From Moscow to Vladivostok (total distance=9195 km)

July 5th - August 1st

Reason To Watch:

The epic journey spans over two months across Russia.

Riders face challenging terrain and unpredictable weather conditions.

Will they finish what they started or fall behind?