What Our Gearhead Experts Are Saying: "I've set up a few junior skis with the SX 4. 5 GW AC and love how simple they are to mount and adjust. They work seamlessly with both youth and adult GripWalk boots, making them a versatile option for fast-growing skiers who need confidence and control." Helping young skiers progress with confidence and control, the Tyrolia SX 4. 5 GW AC Ski Bindings are built with both safety and simplicity in mind. Designed to support developing skiers across all ability levels, they offer an intuitive entry and release system plus the added versatility to fit both adult and junior boot soles—including GripWalk and GripWalk Junior. The DIN range from 0. 75–4. 5 gives lighter skiers appropriate release settings, while the design reduces joint stress and enhances precision so kids can focus on technique and having fun. Whether it's their first season or a step up in gear, these bindings are ready to grow with them.