Quell Lane: Cycling Climb

The climb · United Kingdom

About Quell Lane

Collections

Simon Warren’s Another 100 Greatest Cycling Climbs

Quell Lane climbs north-west from Haslemere, following a bent line through the hillside rather than one uninterrupted straight. The ascent is roughly a kilometre long, a compact addition to the roads around the town. Its opening gives a relatively gentle introduction to the climbing, but that first impression does not describe the effort required further up.

As the road gains height, the gradient becomes more demanding and a comfortable cadence gives way to a slower, more purposeful turn of the pedals. The bends help divide the ascent into small pieces, with the latter part contributing much of the climb's rise. There is no long mountain approach to account for the change: the road moves from manageable to testing within a short distance. Quell Lane is an unassuming climb with enough variation to hold a rider's attention all the way through.

01 / The ascent

Elevation profile

Start 108 m · Summit 190 m

Gradient by distance0.97 km / 82 m gain

0 km0.2 km0.4 km0.6 km0.8 km1.0 km

02 / The numbers

Climb statistics

Distance: 0.97 km
Elevation gain: 82 m
Average gradient: 8.4%
Climb category: 4
Start elevation: 108 m
Summit elevation: 190 m

Current weather

At the climb start

Loading weather…

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

6 min

Power throughout: 225 W
Average speed: 10.4 km/h

Based on the 0.97 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