Bosberg
Climb · Flanders
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Bosberg is a 1.3 km cycling climb averaging 4.7% (+62 m), rising from 39 m to 101 m in Flanders.
1.3 km · +62 m · 4.7% avg · ~12.9% max · 39 → 101 m
Stats computed from OpenStreetMap and satellite elevation data — approximate.
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Gradient by colour: ● <3% ● 3–6% ● 6–9% ● 9%+
Where it bites
Steepest 250 m: 12.6% (km 0.9–1.1).
| section | to | avg |
|---|---|---|
| 0–250 m | 44 m | 2.4% |
| 250–500 m | 53 m | 5.7% |
| 500–750 m | 57 m | 1.1% |
| 750–1000 m | 76 m | 9.0% |
| 1000–1250 m | 95 m | 7.7% |
What it’s like to ride
A short haul through woodland where the surface changes under you: concrete slabs on the lower ramps, then cobbles over the steeper upper half, which tops out around 11 percent against an average of under 6. The stones are uneven and not in good repair, so the effort is as much about holding a line as holding power, and a car coming down takes away the one smooth strip you found. Trees press in on both sides almost the whole way, the road running through the Raspaillebos and the small woods around it, so there is no view and very little wind. At the summit the gradient lets go and the El Faro café sits right there, where the apple pie and cream is the standard order. From the top it is 11.8 km to Ninove.
History
The Bosberg was the final climb of the Tour of Flanders from 1973 until 2011, taken shortly after the Muur van Geraardsbergen, and for four decades the two together decided the race. Edwig Van Hooydonck attacked here in 1989 and 1991, both times beside the same lamp post, and soloed to victory on each occasion, which is why he is known as Eddy Bosberg. Moving the finish to Oudenaarde in 2012 took the hill out of the Ronde, but Omloop Het Nieuwsblad restored the Muur and Bosberg as its closing pair from 2018, with the Bosberg the last climb of the day and 11.8 km left to the line in Ninove. Its cobbles have been a protected monument since 1993, and stage 1 of the 2019 Tour de France crossed the climb on its way out of Brussels.
Worth stopping near the climb
More climbs in Flanders
Common questions
- How long and steep is Bosberg?
- Bosberg is a 1.3 km cycling climb averaging 4.7% (+62 m), rising from 39 m to 101 m in Flanders.
- Where is Bosberg steepest?
- The steepest 250 m averages 12.6%, between km 0.9 and km 1.1 of the climb.