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Alpine ski bindings: DIN, GripWalk and compatibility explained

Fixations de ski alpin : DIN, GripWalk et compatibilité expliqués

Raphaël Guillemette

The binding is a safety component, not just a piece that holds the boot in place. It must be compatible with the sole, adapted to the skier, and correctly adjusted. Improper mounting or incorrect adjustment can prevent the intended release.

ESSENTIAL RULE
Do not choose your DIN yourself based on a number found online. The setting depends notably on weight, height, age, skier level/type, and boot sole length.

What is DIN?

DIN is the adjustment range associated with the binding’s release force. A binding might, for example, cover a range from 3 to 10, or 4 to 13. The number used must be determined according to standards and the skier’s characteristics.

GripWalk: what it means

GripWalk is a boot sole standard offering a more rounded shape and a grippy surface to facilitate walking. A GripWalk boot must be used with a binding that is explicitly GripWalk compatible or with an appropriate multi-norm system.

Alpine ISO and GripWalk

Sole type

Common standard

Required binding

Traditional Alpine

ISO 5355

Compatible alpine binding

Adult GripWalk

ISO 23223

GripWalk / appropriate compatible binding

Multi-norm

Per model

Check manufacturer list

Brake width

The brake must be wide enough to pass around the ski without being excessively wide. An 85 mm waist ski can generally use a slightly wider brake, depending on the binding manufacturer.

Integrated binding or flat ski

Integrated sets simplify the purchase and offer an interface designed for the ski. Flat skis allow for choosing a binding based on the DIN range, weight, style, or type of practice.

Why mounting matters

The mounting position influences the ski's behavior. A directional mount generally favors traditional skiing. A more centered mount is common in freestyle. The manufacturer often provides a recommended line.

When to have bindings checked

  • New pair of boots.
  • Significant change in weight or height.
  • New season after storage.
  • Significant impact on the binding.
  • Change in sole length.
  • Switching from an Alpine sole to GripWalk or vice-versa.

FAQ

Can I adjust my DIN myself?

It is best to have bindings adjusted and tested by a qualified technician.

Does GripWalk work with all bindings?

No. Compatibility must be explicitly indicated.

Which brake width to choose?

Choose a brake slightly wider than the ski’s waist, according to the manufacturer's recommendations.

Is a more expensive binding safer?

Not automatically. Compatibility, the appropriate range, and correct adjustment are the essential factors.

Can any binding be installed on any ski?

No. The ski, binding, brakes, boot, and intended use must all be compatible.

SEE SKIS AND BINDINGS

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