Stubai 3-D Ultralight

3-D Ultralight

Name:Stubai 3-D Ultralight
Nose:notch & hole
Nose Guard:none
Rivets:dimpled: recessed
Gate Shield:windowed
Weight:48 g
Dimensions:Length: 100 mm
Width: 55 mm
Gate Opening: 21 mm
Strength Ratings:Major Axis: 20 kN | Minor Axis: 8 kN | Gate Open: 6 kN
Other Markings:Stamped: STUBAI AUSTRIA | (ratings) UIAA L
Batch Marking Location:spine-right
Collection Criteria:★ Manufacturing, Engineering, or Design
Summary:unique twisted design, notched nose, and pinless/windowed gate
Description & Commentary:

This 3D carabiner has a bend across the basket and lower spine, placing the spine side of the basket (the rope bearing surface) out of plane with the runner end of the carabiner. Intended for bolted sport climbs - when used on the rope end of a quickdraw, this holds the rope away from the rock to reduce wear. The twist may (debatably) make the carabiner easier to grab as it lays against the rock. Additionally, the twist offsets the gate, creating a larger gate opening.

Interestingly, Stubai used a traditional notched nose, but paired with a windowed (not pinned) gate. The size of the window and sharp edges do seem like they could shred a rope if crossloaded during a fall, and not provide the same protection as a full or relieved gate shield.