AI quick summary
- Gravel racing is mass-start racing on unpaved roads (gravel, dirt, fire roads). Distances range from 30 miles (entry) to 350 miles (Unbound XL). Most events are self-supported — you carry your own food, water, and repair kit
- Training focus: endurance (the events are long — 4–10+ hours), fueling practice (eat 60–90 g/hr consistently), and bike handling on loose surfaces. Threshold power matters less than in road racing; sustained endurance matters more
- Gear that matters: tubeless (non-negotiable — pinch flats end races), wide tires (40–50mm), a GPS for navigation (courses are often unmarked), and enough carrying capacity (bottle cages, frame bag) for self-supported distance
- Unbound 200 (Emporia, Kansas, June) is the gravel world championship — 200 miles of Flint Hills gravel. Qualifying is by lottery; finishing requires 5,000+ km of training, perfect fueling, and mental toughness for 10–14 hours
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The gravel racing landscape
Gravel race distances and what each requires.
| Distance | Duration | What it takes | Entry level |
|---|---|---|---|
| 30–50 miles | 2–4 hours | Fitness to ride 3h + gravel bike handling | Beginner-friendly |
| 75–100 miles | 4–7 hours | Endurance + fueling + self-support | Intermediate |
| Unbound 200 (322 km) | 10–14 hours | 6+ months training + perfect execution | Advanced |
| Unbound XL (350 mi) | 20–30 hours | Multi-day ultra-endurance | Expert |
/ 02
Training for gravel
Gravel racing rewards endurance over power. While road racing is about threshold and sprinting, gravel is about sustained Zone 2 for hours — the ability to ride steadily at a moderate pace for 4–10 hours without blowing up. The training: build a massive aerobic base (consistent long rides, 3–5 hours), add one threshold session per week (for the sustained climbs), and practice fueling on every long ride.
The fueling practice is non-negotiable. Gravel races are long enough that bonking (glycogen depletion) is the #1 reason riders DNF. You need to consume 60–90 g of carbs per hour for 4–10 hours — and your gut has to be trained to absorb that. Practice on every training ride over 2 hours. If you can't fuel consistently in training, you can't fuel on race day.
Gravel handling: practice on loose surfaces (gravel, dirt, grass). Cornering on gravel is different from road — the bike slides. Learn to trust the slide, weight the outside pedal, and look through the corner. Descending on gravel requires more caution and lighter braking than on road.
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Gear checklist
Gravel race gear — the items that make or break your race.
| Item | Why it matters | Non-negotiable? |
|---|---|---|
| Tubeless tires (40–50mm) | Pinch flats and punctures end races; sealant prevents 90%+ | Yes |
| GPS computer (with route loaded) | Courses are often unmarked; navigation errors lose hours | Yes |
| 2+ bottle cages (or hydration pack) | Self-supported = you carry your water; 4+ hours between aid stations | Yes |
| Frame bag / top tube bag | Carry food, tools, spare layer for long distances | Yes |
| Plug kit + 2 spare tubes | For cuts sealant can't plug | Yes |
| Backup light | If you're slow, you may finish in the dark | For 100+ mile events |
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Unbound 200 — the big one
Unbound Gravel (Emporia, Kansas, early June) is the Super Bowl of gravel racing. The 200-mile (322 km) distance is the flagship; there are also 100, 50, and 25-mile options. Entry is by lottery (opens in November; fills in minutes).
Finishing Unbound 200 requires: 5,000+ km of training in the preceding 6 months (including multiple 5+ hour rides), a bike set up for reliability (tubeless, fresh tires, freshly serviced drivetrain), a fueling plan tested in training (90+ g carbs/hr for 10+ hours), and mental preparation for 10–14 hours of sustained effort on Kansas Flint Hills gravel (sharp rocks that shred tires).
The race itself: start conservatively (the first 50 miles feel easy because of the adrenaline and draft — resist the urge to push), fuel from mile 1, pace for the back half (the last 50 miles are where the race is won or lost — and where most riders crack), and have a backup plan for mechanicals (tire plugs, tubes, a multi-tool). Unbound is as much an execution test as a fitness test.
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