The Côte de Trieu approaches the ridge from the Walloon side, rising north from the hamlet of Trieu near Russeignies. Its other name, Knokteberg, refers to the settlement near the upper end. The road is asphalt rather than cobbles, and the first part of the ascent offers a more gradual introduction than many neighbouring ramps. Houses give way to a narrower, tree-lined section as the climbing becomes more pronounced, changing both the view and the demands on the rider.
The selected ascent covers about 1.3 kilometres, enough for the effort to develop rather than arrive in a single burst. The harder upper section is partly concealed by the trees, so the opening slope does not reveal the whole climb at once. Bends interrupt the sightline before the road emerges towards the scattered buildings above. It is a measured ascent with a firmer conclusion, and a useful reminder of how much variety this border country contains.
01 / The ascent
Elevation profile
02 / The numbers
Climb statistics
- Distance
- 1.29 km
- Elevation gain
- 83 m
- Average gradient
- 6.4%
- Climb category
- 4
- Start elevation
- 28 m
- Summit elevation
- 111 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
6 min
- Power throughout
- 225 W
- Average speed
- 13.0 km/h
Based on the 1.29 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
Côte de Trieu Knokteberg
Mont-de-l'Enclus, Wallonie, Belgium
- Route length
- 1.29 km
- Total ascent
- 83 m
- Average gradient
- 6.4%
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
Le Horlitin
1.0 km · 6.9% · 69 m gain
Mont De L'Enclus, Région Wallonne, Belgium
1.3 km away · Explore climb →
Oude Kruisberg
0.9 km · 6.1% · 53 m gain
Ronse, Vlaanderen, Belgium
4.5 km away · Explore climb →
Koppenberg
0.6 km · 11.0% · 63 m gain
Oudenaarde, Vlaanderen, Belgium
7.3 km away · Explore climb →
Kanarieberg
0.9 km · 8.6% · 78 m gain
Ronse, Vlaanderen, Belgium
8.8 km away · Explore climb →
Zonnestraat
0.8 km · 4.7% · 38 m gain
Wortegem Petegem, Flanders, Belgium
9.2 km away · Explore climb →