Home / Climb power / Sa Calobra (Coll dels Reis)
Sa Calobra: the climb and its history
Sa Calobra (Coll dels Reis): each side of the climb, every Grand Tour passage since 1996 and the records, each figure with the source it comes from.
The climb
Mallorca (Balearic Islands), Spain
| Side | Start | Length | Elevation gain | Average | Max | Summit | Hairpins | Source |
|---|---|---|---|---|---|---|---|---|
| Sa Calobra | Sa Calobra | 10 km | 701 m | 7 % | 11.1 % | 723 m | 17 | climbfinder.com |
Each side from one source, linked. A dash: the sources we opened disagree or give no figure, so we leave it out.
Records
| Record | Rider | Time | Year | Source |
|---|---|---|---|---|
| Sa Calobra: fastest reported ascent (training ride, Strava KOM as reported by media) | Tom Pidcock | 22:46 | 2022 | road.cc |
A time is listed only where the sources agree on it; where two sources give different times for the same ride, it is left out.
How long would it take you?
Your time up Sa Calobra (Coll dels Reis) at a steady power, from a physics model.
Advanced: rolling resistance and drag
Estimate from a physics model (Martin et al. 1998), on the average gradient. Wind, surface, pacing and steep sections change the real time. More cycling tools
How this is calculated
P × 0.977 = ½ · ρ · CdA · v³ + v · m · g · (sin θ + Crr · cos θ), θ = arctan(average gradient), m = rider + bike, g = 9.81; solved for the speed v, time = length / v. Air density ρ: NASA GRC troposphere: T=15.04-0.00649*h; p=101.29*((T+273.1)/288.08)^5.256; rho=p/(0.2869*(T+273.1)); h = mean of start and summit altitude. Sources: Martin et al. 1998, J Appl Biomech 14(3):276-291 — https://collections.lib.utah.edu/ark:/87278/s6jd5f71; Defraeye et al. 2010, J Biomech 43(7):1262-1268 (upright position, cyclist+bike 0.270 m2) — https://lirias.kuleuven.be/retrieve/232736; NASA Glenn Research Center, Earth Atmosphere Model (metric) — https://www.grc.nasa.gov/www/k-12/airplane/atmosmet.html. Climb geometry: the side's source in the table above.