The climb · Spain
About Puerto de Lizárraga
Puerto de Lizárraga is a moderate climb in northern Spain, combining gentle slopes with a few steeper ramps that demand attention. The road snakes through forests and past open fields, offering a mix of shade and sun that punctuates the ascent.
Although not extreme in length or gradient, the climb is sustained enough to require pacing, with short bursts that test both legs and concentration. Riders can enjoy the surrounding scenery, with distant mountains providing a striking backdrop.
The summit is peaceful, offering a chance to catch one’s breath and take in views of the Basque hills. Puerto de Lizárraga is approachable but rewarding, a climb that feels natural in its rhythm and scenery.
01 / The ascent
Elevation profile
02 / The crux
Where it gets difficult
Choose a distance to find the steepest continuous section of the climb.
Steepest 500 m average
6.4%
Where to find it
1.90–2.40 km from start
- Net height gained
- 32 m
- Section length
- 500 m
03 / The numbers
Climb statistics
- Distance
- 10.85 km
- Elevation gain
- 509 m
- Average gradient
- 4.7%
- Climb category
- 2
- Start elevation
- 515 m
- Summit elevation
- 1,024 m
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.
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
38 min
- Power throughout
- 225 W
- Average speed
- 16.9 km/h
Based on the 10.85 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
Route map
Route overview
Puerto de Lizárraga
Etxarri-Aranatz, Navarre, Spain
- Route length
- 10.85 km
- Total ascent
- 509 m
- Average gradient
- 4.7%
06 / Take it home
The climb, as artwork
Turn the route into a personalised topographic print. Choose your colours and composition, then download your artwork.
07 / Keep exploring
Nearby climbs
Ibardin
5.2 km · 5.0% · 253 m gain
Bera, Navarra, Spain
53.2 km away · Explore climb →
Ortzanzurieta
7.9 km · 7.9% · 658 m gain
Roncesvalles, Comunidad Foral de Navarra, Spain
61.2 km away · Explore climb →
Picón Blanco
8.3 km · 8.9% · 742 m gain
Espinosa de los Monteros, Castilla y León, Spain
123.5 km away · Explore climb →
Lagunas de Neila
14.1 km · 5.4% · 771 m gain
Quintanar de la Sierra, Castile and León, Spain
130.4 km away · Explore climb →
Peña Cabarga
5.8 km · 9.2% · 539 m gain
Cantabria, Spain
151.1 km away · Explore climb →