Measure the waist width of the ski (the narrowest point underfoot) and add 5–15mm. Most junior skis have waist widths of 60–75mm, so a 75mm brake works well. Wider junior all-mountain skis (80–85mm waist) need an 85mm brake. Don't go much wider than necessary—excess brake width creates drag that's especially noticeable for lighter skiers.
Ski Bindings · Junior/Youth Bindings
What brake width do I need for my child's skis?
Related gear types
If this answer nudged you toward a different style, these guides compare specs and trade-offs.
More questions
- Can I just use adult bindings set to the lowest DIN for my child?
- When should my child transition from junior to adult bindings?
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