Mallorca, Spain · from Port de Sa Calobra

Sa Calobra (Coll dels Reis) by bike

Sa Calobra is Mallorca's most famous climb: a ribbon of hairpins engineered into the Tramuntana cliffs, including the 270-degree "tie knot" loop. Because the road dead-ends at the sea, every rider who descends has to climb back out. Gradients stay remarkably consistent, which makes it a popular benchmark effort.

Length
9.5 km
Elevation gain
673 m
Avg gradient
7.1%
Hairpins
26

Summit elevation: 682 m

How fast would you climb Sa Calobra (Coll dels Reis)?

Enter your power and weight. A physics engine calculates your estimated time against the gradient profile.

Physics Engine

Predict your
performance.

See how power and weight affect your time on a real climb.

250 W
75 kg
Sa Calobra (Coll dels Reis) (Simulated)
Est. Time
Set your FTP & weight, then predict
Recovery
Threshold
VO2 Max

*Demo simulation uses standard road bike physics (CdA 0.32, Crr 0.004). for custom bike types, surface analysis, and detailed splits.

FAQ

How long is the Sa Calobra (Coll dels Reis) climb?

From Port de Sa Calobra, the climb is about 9.5 km with roughly 673 m of elevation gain at 7.1% average gradient (based on the simplified profile used by this simulator; published figures vary slightly by source).

How long does it take to cycle up Sa Calobra (Coll dels Reis)?

It depends almost entirely on your power-to-weight ratio. Use the simulator on this page: enter your FTP and weight, and a physics model (air resistance, rolling resistance, gravity) estimates your time on the gradient profile.

How accurate is the time simulation?

The simulator uses a simplified segment profile and standard road bike assumptions (CdA 0.32, Crr 0.004, 8 kg bike). It does not model wind, drafting, altitude, surface or pacing errors, so treat the result as a realistic estimate, not a guarantee.

How should I train for Sa Calobra (Coll dels Reis)?

Sustained climbs reward steady threshold and sweet spot work plus a power-to-weight improvement over weeks, not days. TrainCraft builds structured cycling training plans and adapts them when you miss sessions, using fatigue science (CTL/ATL/TSB).

More famous climbs

Preparing for this climb?

A climb like this is won weeks in advance. TrainCraft builds a structured plan around your FTP and available hours, and adapts it when you miss a workout.

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The profile is simplified into 7 segments for simulation; real gradients vary metre by metre. Stats shown are derived from this simulated profile and closely match commonly published figures. Time estimates assume standard road bike physics and no wind.

Training for a climb like this?

TrainCraft builds structured training plans and adapts them when life gets in the way — real fatigue science (CTL/ATL/TSB), visual workout builder, Strava & Garmin sync. Free to start.