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.

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

Crankworx © Graeme Murray/Red Bull Content Pool

Crankworx Rotorua

The reform of single-track racing continues at CranKworx Rotorua in New Zealand. This includes a five-day schedule, competition format, and large-scale single-track culture.

Location: Rotorua, New Zealand

Date: March 9th-13th

Must-watch reason: The first spring terminal single-track event will take place at the slope-style rich CranKworx Rotorua. Last year's winner Brett Rheeder - will we see another rising star emerge in 2016?

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 9-10th

Must-watch reason: Loïc Bruni, this young French rider won his first World Championship title last season; can he maintain his excellence and dominate podiums?

The men start the XCO World Cup stage.

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

UCI XCO MTB World Championship

This marks UCI's first-ever separation of cross-country from downhill events; two separate competitions taking place over different dates and locations. First up is June-end to July-start Nove Mesto cross-country championships.

Location:Czech Republic

Date : June28-July3

Must-watch reason：As everyone focuses on Rio Olympics next year，this annual championship may have unknown dark horses emerge from an array of competitors. Mathias Fluckiger & brother Lukas have potential to win Nové Město successfully & return home victorious.

Coco Zurita performs at BMX Vert Finals during X Games Austin.

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

X Games

Celebrating its third year hosting events in America，X-Games offers top-notch BMX Park、Vert、& Dirt races once more.

Location：Austin，Texas，USA

Date：June2nd-5th

Reason to watch：Daniel Sandoval took home gold medals last year； but don't count out Daniel Dhers' experience-rich career achievements that make him an odds-on favorite too!

Tour de France (环法自行车赛)

Joining history as it celebrates its103rd edition this summer，the Tour de France features three weeks worth of climbing iconic landmarks like Mont Ventoux。Last year’s champion Chris Froome has shown himself versatile enough to be a strong contender again this time around。

Location：France

Date：July2nd-21st Must-watch reason：World Champion Peter Sagan often surprises spectators with his speed & agility；his consistent progress up steep inclines makes him a thrilling competitor worth watching.

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

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

Trans-Siberian Extreme

A legendary railway journey across Siberia awaits participants within Red Bull Trans-Siberian Extreme – one world’s longest multi-stage cycling event spanning over approximately9,]19 km.

From Moscow to Vladivostok

Start Date：July]5 \ End Date：July]28 \ Must-watch reason:[A fierce showdown between Russian cyclist Mikhail Ignatyev or Italy’s Paolo Aste could potentially decide victory.]

Brandon Semenuk tucks into no-hander action at Red Bull Joyride.

Brandon Semenuk / Red Bul