Unbound Gravel 200
📍 Kansas, Flint Hills, USA
Colorado, USA · 1 February 2026
Difficulty: 4/5 — Very hard
A winter cycling and running festival held in Lyons, Colorado, featuring mixed-terrain routes ranging from 23 to 75 miles. Cyclists will navigate a combination of paved roads, gravel, and snowy singletrack in cold winter conditions.
Visit official site →It is ideal for adventure-seeking athletes who want to test their winter endurance and enjoy a vibrant post-race community party.
Riders who are uncomfortable with cold temperatures or lack the bike handling skills required for snowy, mixed-surface terrain will struggle.
Prioritize building aerobic endurance in cold weather and practice handling your bike on slick, unstable surfaces like snow and loose gravel.
Compare your W/kg to see how you stack up against this race's typical level — and which races fit you best right now.
Participants can choose between three distinct bike course distances: 23 miles, 40 miles, or 75 miles.
The courses utilize a mix of paved and gravel roads. If you opt for the challenging 75-mile route, you will also encounter canyon roads and snowy singletrack.
Yes, you can participate in a multi-sport challenge by combining the 10K running course with the 40-mile bike ride.
All participants have access to well-stocked aid stations along the course and will receive a hot meal, cold beer, and winter event swag.
📍 Kansas, Flint Hills, USA
📍 Colorado, USA
📍 CO, USA