Vonarskarð

Vonarskarð cycling climb profile

Vonarskarð is a short, controlled category 4 climb: 2.6 km from bottom to summit, rising from 929 m to 1055 m. The headline number is the 4.81% average gradient, but the more useful detail is the ceiling. With a maximum gradient of 5.96%, this is not a climb defined by violent changes in pitch. It is the kind of ascent where rhythm matters more than survival.

That makes the pacing problem fairly simple, but still easy to get wrong. Because the climb is short and never gets brutally steep, it invites an early acceleration. The risk is that the 2.6 km length is long enough to punish a start that is closer to an attack than a sustainable effort. Treat the opening as a settling phase, not a launch pad.

How the gradient unfolds

The profile points to a steady rise rather than a stepped climb. A 4.81% average against a 5.96% maximum means the steepest sections do not sit far above the overall gradient. In practical terms, the climb should feel consistent: enough resistance to require a deliberate effort, but not enough gradient to force repeated out-of-saddle surges.

The summit arrives at 1055 m after 126 m of net elevation gain. That vertical gain is modest, but because the climb starts at 929 m, the main tactical requirement is keeping the effort smooth rather than relying on repeated accelerations. If this appears inside a longer ride, it is better ridden as a controlled tempo climb than as a maximal effort unless the objective is specifically the segment.

Pacing and gearing notes

For endurance pacing, sit just below the effort you would associate with /glossary/ftp and keep cadence stable. The gradient does not demand a defensive gear choice, but it does reward one: choose a gear that lets you stay seated through the near-6% maximum without grinding. If you are carrying equipment or riding tired, err on the easier side early, then lift the pressure once the summit is clearly coming.

For a harder attempt, the cleanest strategy is a slight negative split. Hold back during the first part, avoid spiking on the steepest pitch, then build over the final section. On a climb this short and steady, time is gained less through big surges and more through avoiding the small fade that comes from starting 30 seconds too hard.