Ski Boot Lateral Stiffness

When looking at ski boots you ll see a flex rating described as a number usually somewhere between 60 and 140.

Ski boot lateral stiffness.

Innovative aspects of this work included not only the stance geometry system ski boot but also the setup of a virtual design environment that was validated by experimental evidence. The new sgs design system allows the adjustment of lateral stance before using the ski boot optimizing the ski boot stiffness through fem analysis. A boot needs to be stiff enough to support the skier s tall neutral stance the too soft boot will collapse under the weight and leverage of the skier creating too much bend in the knee and resulting in smoking quads. Often this number is written on the outside of the boot cuff.

A ski boot s flex rating describes how much flexibility exists in the boot at the ankle area. Boot flex ranges from very soft to race stiffness indicated by a numeric flex index that s usually a number from 50 soft to 130 very stiff. Usually through trial and error but with some guiding parameters. Head s nexo lyt 130 rs is a performance driven boot that s stiff and responsive but incredibly lightweight thanks to the use of graphene material which according to head is 300 times stronger than steel but only as thick as a single atom.

Flex in ski boots refers to how difficult it is to flex the boot forward.