Downhill Ski Fitting Tips

When shopping for a new pair of skis, one tricky decision comes in sizing them. Skis are available in a dizzying array of lengths and widths. The sizing of skis depends on many factors, including ability, the terrain to be skied and the skier's weight. The design of the ski also is important.

  1. Length

    • Ski length is determined by a variety of factors, and a skier can actually enjoy skiing on the same ski in two different lengths, depending on the use of the ski. Longer skis are best for faster skiers,because they provide more stability. Shorter skis tend to be more maneuverable, with a shorter turning radius, defined as the circle size the ski makes if put on edge and allowed to carve a full circle. The preferred length can also be affected by the width of the ski. Generally, a ski that measures from the floor to between the chin and forehead is best for most recreational skiers. Heavier skiers need longer skis for more flotation, whereas lighter skiers may prefer a skinnier ski for more maneuverability and lightness.

    Width

    • Average ski width has steadily crept upward during the last 15 years, to the point at which skis that were considered fat a decade ago now look skinny. Ski width is best determined by the terrain. Narrow boards are best on hard-packed snow typical of the northeast. Fat boards are best in the endless powder of the west. For all-mountain use, a ski that is between 80mm and 90mm underfoot can handle most terrain. Racers often prefer a ski between 60mm and 70mm underfoot for quick edge-to-edge transitions.

    Design

    • A ski's design also affects its sizing. Twin tip skis have become popular in powder and in terrain parks. Twin tips allow a skier to ski switch, or backwards, making turning tricks a lot easier, and the upturned tail also helps in powder. Twin tip skis, by their very design, ski shorter than their actual length, so a longer twin tip ski may be preferred to a traditional ski so that the same running surface is underfoot.