Unbound Gravel 200
📍 Kansas, Flint Hills, USA
gravel
Date
3–6 June 2027
Distance
200mi · 100mi · 50mi · 25mi
Elevation
2,800 m
Difficulty
gravel
Lost and Found Gravel Grinder and Bike Ride
California, USA · 13 June 2026
Difficulty: 4/5 — Very hard
Staged in the high-altitude terrain of the Sierra Nevada, this premier gravel event features routes up to 99 miles of demanding backcountry riding. Cyclists tackle a rugged mix of dirt, gravel, and paved roads through remote alpine valleys before celebrating at a lively weekend festival.
Visit official site →- Distances
- 40 miles · 58 miles · 99 miles
- Surface
- gravel, tarmac, dirt
- Typical W/kg
- 2.5–4
Rider fit
Who it's for
It is ideal for self-sufficient gravel racers who thrive on long alpine climbs and appreciate a festive weekend community atmosphere with camping and live music.
Who will struggle
Riders lacking experience with thin mountain air, steep backcountry ascents, and loose, unpaved descents will find the course highly challenging.
Training focus
Prioritize sustained sweet-spot and threshold intervals to handle the long Sierra climbs, alongside high-volume endurance blocks to build stamina for the high mileage.
Are you ready for this race?
Compare your W/kg to see how you stack up against this race's typical level — and which races fit you best right now.
FAQs
What are the available distance options for the race?+
Participants can choose from three distinct route lengths: 99 miles, 58 miles, or 40 miles.
Where is the event located and hosted?+
The event is based in Portola, California, set within the scenic Sierra Mountains of Northeastern California.
What kind of surfaces can I expect on the course?+
The route features a diverse mix of paved roads, dirt tracks, and gravel roads.
Are there specific timed challenges during the event?+
Yes, there are three designated short timed segments for competitive riders: the Grizzly Grind uphill, the Crocker Cruise, and the Dotta Downhill.
How does participating in this race support local trails?+
The event proceeds directly benefit the Sierra Buttes Trail Stewardship and their Connected Communities project, which aims to link mountain towns through recreation.