Unbound Gravel 200
📍 Kansas, Flint Hills, USA
gravel
Date
3–6 June 2027
Distance
200mi · 100mi · 50mi · 25mi
Elevation
2,800 m
Difficulty
gravel
Michaux GRVL
Pennsylvania, USA · 26 September 2026
Difficulty: 4/5 — Very hard
Michaux GRVL is a challenging gravel race offering 15, 45, 65, and 100-mile routes through Michaux State Forest, with the longest course featuring 9,800 feet of climbing. Participants should expect chunky gravel terrain and require tires of at least 35mm for optimal performance.
Visit official site →- Distances
- 15 miles · 45 miles · 65 miles · 100 miles
- Elevation
- 2,987 m
- Surface
- gravel
- Typical W/kg
- 2.8–3.8
Rider fit
Who it's for
This event caters to gravel enthusiasts looking for a significant physical challenge, offering timed routes and prizes for top finishers, particularly on the longer distances.
Who will struggle
Riders without adequate training, experience on challenging gravel terrain, or appropriate tire selection for chunky sections will likely find the longer routes particularly demanding.
Training focus
Training should emphasize long-distance endurance, climbing strength, and bike handling skills on varied gravel surfaces, especially for the expert course.
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
Are day-of registrations available?+
No, all participants must register on BikeReg prior to the event's registration closing.
What type of bike and tires are recommended?+
Gravel bikes with tires of at least 35mm are recommended due to chunky road sections and puncture risk on downhills.
Will the roads be open to traffic?+
Yes, roads will be open to traffic. Participants must obey traffic laws and respect motorists.
What is included with the paid entry?+
Paid entry includes a meal voucher for a post-ride lunch food truck and, for participants over 21, two pre-paid beer vouchers for on-site Michaux Brewing Co. beer.
Are there aid stations on the course?+
Yes, aid stations are available on the 45, 65, and 100-mile routes, with the 100-mile course having 2.5. The 15-mile Explorer course has no aid station.
Are there prizes for top finishers?+
Yes, prizes will be awarded to the top 3 riders in each gender category with at least three competitors, including an exclusive Michaux GRVL Trophy for winners.