Does a shorter turn radius make a ski quicker?
Ski lore says a short turn radius means a quick, snappy ski and a long radius means a slow, straight one. We checked that against 26 all-mountain skis from one GearLab test.
Turn radius is the size of the circle a ski draws when it is tipped on edge and carves a turn, given in meters. Quickness is hard to measure, so we used GearLab's Carving Ability score, whose definition covers short- and medium-radius turns and edge-to-edge quickness. It is a proxy, not a pure quickness score.
What we found
In GearLab's scores, radius alone doesn't predict carving or quickness among 26 all-mountain skis in a 15-18 m range. The rank correlation (Spearman) between radius and Carving score was +0.03 (permutation p = 0.88). Men's skis gave -0.09 (n = 13) and women's skis -0.13 (n = 13).
| Turn radius group | Skis | Average Carving score |
|---|---|---|
| 16 m or less | 10 | 6.0 |
| 16.1-17 m | 12 | 6.5 |
| Over 17 m | 4 | 7.4 |
The longer-radius group scored a little higher, but with four skis that is not a difference we would lean on.
Caveats
- One tester team and 26 skis: a pattern, not proof.
- Radii span only 14.7-18 m. This says nothing about very short or very long radius skis.
- Radius is the stated value at a reference length (165-180 cm) and changes with length. Three skis lacked a clean radius and were left out.
- Two skis (Armada Declivity 92 Ti, Fischer Ranger 102) use older model-year listings.
- We also split skis by waist width; the groups were too small to read.
Sources
- Scores: GearLab / OutdoorGearLab, best all-mountain skis tests and how-we-test page (outdoorgearlab.com/topics/snow-sports/best-all-mountain-skis/how-we-test), checked 2026-10-31.
- Radius: manufacturer values via retailers (evo, Ski Essentials and others) and Blister; per-ski links and disagreements in
posts/2026-11-02-turn-radius-quickness/sources.mdanddata.csv. - Analysis: ours,
analysis.py.
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