2025 Stockli Montero AR Skis. The 2025 Stockli Montero AR is a high performance all-mountain/frontside ski that excels across a variety of terrain and conditions, appealing to advanced and expert skiers who prefer to make longer turns at high speeds, yet want the versatility to explore all over the resort. Sidecut: 128/84/114 mm at 175 cm length. Radius: 16.3 m at 175 cm length. Tip and Tail Flex. Ability Level: Advanced to Expert.