Ubac 110 review

Overview

The Ubac 110 is the 2026/27 name of the widest ski in Zag's Ubac touring line. It replaces the Zag Ubac 108, and Zag's own pages show that little has changed beyond the name: the 2027 spec table lists the same three lengths (173, 180 and 188 cm), the same 140/108/126 to 143/108/128 mm sidecut, the same 19–21 m radii and the same 1.64–1.74 kg per ski as the outgoing Ubac 108, and the climbing skins are sold as "UBAC 108/110". The visible changes are a new Chocolate graphic, a new product code and new marketing copy. That copy, and Zag's FAQ, speak of a 110 mm waist, while the brand's own table still says 108 mm, so we use the table values. Zag positions the 110 as a dedicated deep-snow touring ski: "the touring ski that skis like a powder ski".

On-snow performance

Zag is clear about the job: this is a second pair for storm days, "not an everyday ski". On paper, the long tip rocker (40%) and tail rocker (30%) over a low camber should let the ski plane up early in deep snow and smear long, drawn-out turns. Radii of 19 m at 173 cm to 21 m at 188 cm point to big, open turns rather than tight ones, and Zag rates the ski 5/5 for powder and pivot but only 2/5 on hard snow. In practice that means firm spring snow, icy traverses and narrow couloirs on refrozen crust are not its strength; Zag itself says the narrower Ubacs are better for firm spring tours. Uphill, 1.64–1.74 kg per ski is reasonable for this width but clearly heavier than the light end of the touring market; Zag rates climbing ability 3/5.

Construction & specs explained

• Core: paulownia wood, chosen to save weight without the durability issues of a foam core.
• Laminate: fibreglass and carbon fibres; Zag says this makes its freerando skis twice as torsionally stiff.
• Build: SEMI CAP sandwich with ABS sidewalls and high-strength steel edges.
• Profile: 40% tip rocker, 30% tail rocker, low camber; multi-radius shape.
• Flex: stiff (Zag rates stiffness 5/5).
• Sidecut: 140/108/126 mm (173), 143/108/128 mm (180 and 188).
• Radius: 19 m (173), 20 m (180), 21 m (188).
• Weight per ski: 1,640 g (173), 1,700 g (180), 1,740 g (188).
• Binding: Zag recommends its Forge Pro (DIN 3–11); skins come in 110 mm width.

Who it's for & comparisons

The Ubac 110 is for experienced ski tourers who already own an all-round touring ski and want a second pair for powder days, or for freeride skiers who are willing to carry a little more weight uphill for float on the way down. If you are choosing within Zag's line, the Zag Ubac 102 is the more versatile option; Zag's own FAQ says the 110 "gains in float what it loses in versatility". Outside Zag, the Kästle TX107 is lighter in each length (1,450–1,570 g) with a similar low-camber double-rocker recipe and shorter radii, while the Elan Ripstick tour 104 is narrower, has Elan's asymmetric Amphibio profile and longer radii up to 25.4 m.

Pros, cons and verdict

Pros

• Long tip and tail rocker for early planing in deep snow.
• Stiff, carbon-reinforced build for confidence at speed in soft snow.
• 1.64–1.74 kg per ski is moderate for a ski this wide.
• Three lengths with matching Zag skins.

Cons

• Zag rates it only 2/5 on hard snow, so firm and icy days are hard work.
• Heavier than the lightest wide touring skis.
• Only three lengths, starting at 173 cm.
• A powder specialist, not a ski for every tour.

Verdict: A wide, stiff freerando ski for deep days you have to climb for, and in all published specs the same ski as the Ubac 108 under a new name and graphic. If you find a Ubac 108 at a clearance price, it is the same platform on paper.