In past years, there’s been a school of thought among the cycling community that gravel riding is little more than old-school mountain biking.
With rigid frames, larger tires, chunky terrain, and a decidedly more casual attitude compared to the professional road circuit, it’s not hard to see why. A few years ago, gravel cycling seemed like a niche discipline or something on the periphery of a sport dominated by the road, track, and mountain bike worlds.
But, as bike manufacturers began fixing wider tires to rigid frames with drop bars, complete with gearing that seemed more at home on singletrack, many people became disciples of the versatility of the gravel-bike platform.

We are beginning to see gravel cycling enter an era of increased professionalization and specialization that is admired and respected as much as the other traditional disciplines. It has the backing of major brands who fork out a ton of cash to see athletes battle over unique, picturesque landscapes that hit differently than traditional road contests. They are grueling and dirty, and they often come with complicating factors that can make things interesting in a hurry.
There’s also the matter of insane mileage in some races that leave even pro riders scratching their heads, wondering whether they are up to the challenge.
Gravel races pepper every corner of the country, but a few have emerged as the top-tier contests, and UNBOUND Gravel is right at the top of that list.
What Is UNBOUND Gravel?
Racing fans acclaim UNBOUND Gravel as the premier gravel race in the world. The main event is a 200-mile teeth-chattering dash through the Flint Hills starting in Emporia, Kansas, pushing riders to their absolute limit.
Since the race’s inception (formerly known as the Dirty Kanza), it has added additional race categories to make the event more accessible or more difficult for those who feel up to a genuinely heinous challenge.
There are ride distances including 25-, 50-, and 100-mile options — and then there’s the notorious UNBOUND XL, which covers 350 miles and begins the day before the main event. There’s also a race for juniors.

Who Are the UNBOUND Gravel Riders?

- July 9: Crusher in Tushar 70-mile race
- Aug. 13: Leadville Trail 100 MTB
- Sept. 17: Chequamegon MTB 40-mile race
- Oct. 22: Big Sugar Gravel 100-mile race