The Valkenberg climbs north-west in Brakel, with an asphalt ascent whose name covers a longer piece of road here than some shorter definitions of the hill. This selected route runs for about a kilometre, giving the slope room to develop before the higher ground is reached. The setting belongs to the rolling Flemish Ardennes, where the next rise can sit quite close to the previous descent. The climb has a distinct middle rather than a uniformly demanding line from beginning to end.
The earlier road introduces the ascent more gently, while the stronger central portion makes the pace fall and the pedalling more deliberate. Higher up, the profile eases again, providing a change of rhythm before the selected endpoint. Roughly 50 metres of height are gained over the whole passage. That modest number leaves out the way the effort is concentrated along the road. Valkenberg is a well-shaped local ascent, more interesting under the wheels than its overall dimensions imply.
01 / The ascent
Elevation profile
02 / The numbers
Climb statistics
- Distance
- 1.00 km
- Elevation gain
- 50 m
- Average gradient
- 5.0%
- Climb category
- Uncategorized
- Start elevation
- 44 m
- Summit elevation
- 94 m
03 / Your effort
How long would it take?
Enter the power you could hold for the whole climb. We calculate a moving time from the elevation profile and the forces you ride against.
Use your intended climbing effort, rather than FTP unless you can hold it for the predicted duration.
Bike + kit includes clothing, bottles and luggage.
Advanced settings
Defaults represent a road-bike scenario. Adjust these settings to match your tyres, drivetrain and riding position.
Modelled moving time
4 min
- Power throughout
- 225 W
- Average speed
- 15.6 km/h
Based on the 1.00 km elevation profile. Assumes steady power, with no stops, braking or drafting. Rounded to the nearest minute.
The science behind the calculation
For each part of the stored profile, we solve the steady-state cycling power equation for speed, then add distance ÷ speed across the climb. Gravity uses rider + equipment weight; available power is W/kg × rider weight. This uses the profile’s distance and elevation together, without mixing in another route’s metrics.
Power × efficiency = gravity + rolling resistance + air resistance + bearing losses
The resistance equations are adapted from Martin et al. (1998), Validation of a Mathematical Model for Road Cycling Power. Air density changes with profile altitude using NASA’s standard-atmosphere model. This calculator’s adaptation has not been independently validated.
It predicts travel at the power you enter, including on descents. It does not model acceleration, cornering, braking, traffic, wind, changing weather or fatigue. At altitude, choose power you can sustain there: thinner air reduces drag, but this model does not predict its effect on your ability to produce power. Profile quality and assumed equipment settings also affect the result.
04 / On the ground
Route map
Route overview
Valkenberg
Brakel, Vlaanderen, Belgium
- Route length
- 1.00 km
- Total ascent
- 50 m
- Average gradient
- 5.0%
05 / Take it home
The climb, as artwork
Turn the route into a personalised topographic print. Choose your colours and composition, then download your artwork.
06 / Keep exploring
Nearby climbs
Vijverdal
0.3 km · 4.6% · 17 m gain
Lierde, Vlaanderen, Belgium
2.2 km away · Explore climb →
Berendries
1.0 km · 6.5% · 62 m gain
Brakel, Vlaanderen, Belgium
2.7 km away · Explore climb →
Steenbeekberg
0.9 km · 7.8% · 50 m gain
Maarkedal, Vlaanderen, Belgium
5.1 km away · Explore climb →
Meersestraat
1.2 km · 3.0% · 36 m gain
Horebeke, Vlaams Gewest, Belgium
5.5 km away · Explore climb →
Les Plachettes
1.0 km · 6.1% · 64 m gain
Flobecq, Région Wallonne, Belgium
7.0 km away · Explore climb →