liquidfeet
Ski Diva Extraordinaire
Can someone explain to this newbie what side cut is?
Skis used to be kind of straight, from tip to tail. As on the left, below.
Now they are hour-glass-shaped, as on the right. At first the new skis were called "parabolic," or "shaped" skis, but people don't use those terms any more. Nor do they call the straight skis "traditional" any more. They call them old-school, or straight skis. Shaped skis are now just skis.
My little graphic's labels are old, but it is the only one I could find.
How much "sidecut" a ski has reflects how much narrower the waist (middle) of the ski is compared to its tip and tail. More sidecut means the waist is narrower in comparison to the two ends; less sidecut means the difference is not so dramatic. Sidecut is not measured; it's a relative term.
Skis with more sidecut will want to make shorter turns when tipped up on edge on hard snow than skis with less sidecut. "Turn radius" is a measure of what radius turn the ski will make if tipped gently on its side. So turn radius (usually the measure in meters is written on the ski with the letters TR in front of it) is the closest thing we have to a measure of sidecut.