Leberg: Cycling Climb

The climb · Belgium

About Leberg

Collections

Hellingen

Leberg starts with a firmer rise before running into the more open ground around Brakel. The asphalt road comes just beyond the Haaghoek cobbles on the familiar approach, so its smoother surface can feel like a change of occupation even while the climbing begins. A bend in the lower part gives the ascent its strongest early impression. Above, the road continues through fields, where the view becomes broader and the incline less concentrated.

This selected ascent covers roughly 860 metres. Its shape matters more than a single average: the lower slope asks for deliberate climbing, then the gentler upper road allows the effort to settle. Exposure adds another variable to that continuation, since a headwind can keep the work alive after the gradient has eased. The upper passage is therefore worth treating as part of the climb rather than an automatic recovery. Leberg makes a neatly varied transition from the lower lanes to open high ground.

01 / The ascent

Elevation profile

Start 59 m · Summit 96 m

Gradient by distance0.86 km / 37 m gain

0 km0.2 km0.3 km0.5 km0.7 km0.9 km

02 / The numbers

Climb statistics

Distance: 0.86 km
Elevation gain: 37 m
Average gradient: 5.5%
Climb category: Uncategorized
Start elevation: 59 m
Summit elevation: 96 m

Current weather

At the climb start

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Weather data: MET Norway

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.

Sustained power

W/kg

Use your intended climbing effort, rather than FTP unless you can hold it for the predicted duration.

Rider weight (kg)

Bike + kit weight (kg)

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.

Effective drag area (CdA) (m²)

Rolling resistance (Crr)

Drivetrain efficiency (%)

Modelled moving time

3 min

Power throughout: 225 W
Average speed: 18.6 km/h

Based on the 0.86 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