Steinernes Tor cycling climb profile
Steinernes Tor is a pure climbing problem: 11.8 km long, an average gradient of 9.54%, and an HC classification. The numbers do not leave much room for interpretation. This is not a climb where the headline difficulty comes from one isolated wall inside an otherwise manageable ascent. The average alone says the road keeps applying pressure almost continuously from bottom to summit.
The climb starts at 553 m and tops out at 1676 m, giving a listed net elevation gain of 1123 m. Over 11.8 km, that means the road is doing the damage through sustained steepness rather than distance alone. For a rider, the key point is that a 9.54% average does not feel like a steady tempo climb unless the effort is carefully capped early. It quickly becomes a muscular effort, especially if cadence drops.
How the gradient unfolds
The available profile data does not give kilometre-by-kilometre splits, so the honest read is macro rather than sectional. Steinernes Tor climbs hard from the start in the sense that the full climb averages 9.54%, and any easier sections are not enough to soften the overall demand. The maximum gradient of 25.65% is the real warning. Somewhere on the ascent, the climb moves from hard aerobic climbing into terrain that can force out-of-saddle riding, low-cadence torque, and short spikes well above sustainable effort.
That combination matters. A long climb at just under 10% already asks for disciplined pacing. Add ramps above 25%, and the rider who starts too close to threshold will not have the reserve needed to get over the steepest sections cleanly. The climb rewards patience more than aggression.
Pacing and gearing
Treat Steinernes Tor as an HC effort from the first pedal strokes. The mistake is to ride the early gradient by feel, because steep roads often feel controlled for a few minutes before the cost appears. Start below your target climbing effort, settle into a rhythm, and save the harder accelerations for the unavoidable steep ramps rather than spending them voluntarily.
Gearing should be chosen for the maximum gradient, not just the average. A setup that feels acceptable on 9.54% may be overmatched when the road reaches 25.65%. If your easiest gear still forces a grinding cadence on steep gradients, the climb becomes less about aerobic capacity and more about strength endurance. That is a risky trade-off on an 11.8 km ascent.
For pacing, anchor the effort to sustainable climbing power rather than speed. On a climb this steep, speed varies heavily with small changes in gradient, while effort is the better control metric. If you know your /glossary/ftp, ride the lower part with enough restraint that the steepest ramps can be absorbed without repeated surges. The goal is not to win the first half of Steinernes Tor. It is to arrive near the summit still able to turn the gear.