Mytholm Steeps: Cycling Climb

The climb · United Kingdom

About Mytholm Steeps

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Simon Warren’s Another 100 Greatest Cycling Climbs

Mytholm Steeps climbs west from the Hebden Bridge side of the Calder valley, using a road whose hardest passages arrive well before the finish. The full selected ascent is about 3.2 kilometres, but much of its height gain is concentrated in the first part. Trees and sharp bends frame that more severe section, where each turn reveals further climbing and the distance travelled can feel out of proportion to the effort already spent.

Eventually the road emerges from the trees and the gradient becomes gentler. The upper continuation adds length with much less climbing than the earlier bank, allowing the view and the changing setting to take more of your attention. That longer conclusion is part of the ascent's character, rather than a reason to judge the steeper section by the overall average alone. Mytholm Steeps combines a demanding escape from the valley with a more spacious finish on the higher ground.

01 / The ascent

Elevation profile

Start 105 m · Summit 338 m

Gradient by distance3.23 km / 233 m gain

0 km0.6 km1.3 km1.9 km2.6 km3.2 km

02 / The crux

Where it gets difficult

Choose a distance to find the steepest continuous section of the climb.

Steepest 500 m average

15.5%

Where to find it

0.40–0.90 km from start

Net height gained: 78 m
Section length: 500 m

The whole climb3.20 km

0 kmFinish

03 / The numbers

Climb statistics

Distance: 3.23 km
Elevation gain: 233 m
Average gradient: 7.2%
Climb category: 3
Start elevation: 105 m
Summit elevation: 338 m

Current weather

At the climb start

Loading weather…

Weather data: MET Norway

04 / 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

16 min

Power throughout: 225 W
Average speed: 11.7 km/h

Based on the 3.20 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.

05 / On the ground