HomeBy BrandDMM Climbing

DMM Ultra O Carabiner | Oval Straight Gate | Aid Climbing |  Racking Biner for Rock Climbing

DMM Ultra O Carabiner

The classic oval carabiner with a DMM twist. I-Beam construction gives a full size, high quality lightweight biner for many applications

The Ultra O is a very practical biner that works exceptionally well in pulley systems (locking versions are also available for added security). It also has hot forged, I Beam panels to maximise the strength – weight balance of the biner.

Despite these practical advantages, most climbers will see it as the perfect racking biner. It can hold a large number of wires without the awkward bunching that tends to happen with a conventional asymmetric biner. The oval shape also means that the wires will slide round easily without snagging.


  • Clean nose oval straight gate biner
  • Strong and lightweight I-Beam construction
  • Very generous 9.75mm rope radius
  • Works well in pulley systems
  • Excellent aid climbing biner
  • Perfect racking biner
Strength (Gate Closed) Strength (Gate Open) Strength (Minor Axis) Gate Opening Weight
25kN 7kN 12kN 24mm 61g

Brand DMM