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 challenge where riders must brave extreme cold and scarce supplies in Alaska's tundra.

Location: Alaska

Date: February 28th

Must-watch for the sheer grit required to complete this unforgiving event in sub-zero conditions that few can handle.

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

Crankworx Rotorua - Revolutionizing Mountain Bike Culture

A five-day festival of MTB culture and competition at New Zealand's Rotorua. Expect reforms to the format and big-mountain features.

Location: Rotorua, New Zealand

Date: March 9-13th

The first major mountain bike slopestyle event of spring will take place at Crankworx Rotorua. Will we see another star emerge after Brett Rheeder's victory last year?

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

UCI MTB World Cup - The Battle for Supremacy

A thrilling showdown between top riders like Loïc Bruni, who won his first World Championship title last season. Can he maintain his dominance or will new challengers rise to claim victory?

Location: Lourdes, France

Date: April 9-10th

UCI XCO MTB World Championship - Uniting Worlds Apart

For the first time ever, UCI is separating Cross-Country (XCO) from Downhill (DH) events. This marks a significant shift towards individual disciplines with separate competitions taking place across different locations worldwide.

Location: Czech Republic

Date: June 28-July 3rd

This championship could witness an underdog hero emerge among international competitors as Mathias Fluckiger and Lukas aim for success following their family legacy.

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

X Games - Celebrating BMX Park & Dirt Action

The third edition of X-Games held in North America promises exhilarating performances by Daniel Sandoval aiming to retain his crown alongside other formidable opponents such as Daniel Dhers with years of experience under his belt.

Location: Austin, USA

Date: June 2-5th

La Vuelta ciclista a España - Pedaling Through Iconic Landscapes

Celebrating its centennial anniversary this year is La Vuelta ciclista a España – an iconic three-week cycling journey featuring famous landmarks including Mont Ventoux. Chris Froome emerged victorious last season but Peter Sagan remains an intriguing dark horse contender with growing climbing prowess complemented by extensive timed segment expertise throughout his career so far.

Red Bull Trans-Siberian Extreme Ride Across Russia

From Moscow to Vladivostok over nearly nine thousand miles of Russian terrain lies Red Bull Trans-Siberian Extreme – one of humanity’s longest multi-stage races inspired by legendary railways traversing Siberia.

Location : From Moscow to Vladivostok (a total distance of approximately nine thousand kilometers)

Date : July fifth through twenty-eighth

Red Bull Joyride Whistler Boneyard Showdown

In Canada's Whistler Mountain Bike Park stands Boneyard as global Slopestyle championships' stage where Brandon Semenuk aims for four consecutive titles while challenger Brett Rheeder seeks victory amidst fierce rivalry between these two Canadian stars.

Location : Whistler Mountain Bike Park | Canada

Date : August | Details available on RedBull.com

UCI DH MTB World Championships Val di Sole Italy

Aaron Gwin holds sway atop downhill racing podiums yet lacks only one medal from completing his collection—World Champion gold medal—the target now set before him ahead into next year when he may achieve it all if not thwarted by any contenders during this Italian showdown held annually around mid-year.

Location : Val di Sole Italy

Date : September eighth through eleventh