- Far lower forces are exerted on the belayer
- Lowering a heavier person in a controlled manner is far easier
- OHM is attached at the first bolt in the safety chain
- The device reduces the risk of a collision when falling on the first bolt
- Rope handling when belaying a lead climber not affected (no additional friction when paying out rope)
- “Makes the belayer 25 kg heavier”
- Minimum belayer weight: 40 kg
- For single ropes from 8.9–11.0 mm
If there is a significant difference in weight between lead climber and belayer this frequently causes problems. This applies in particular to climbing couples, where the woman is often significantly lighter than her partner.
In the event of a fall, a lighter belayer can be suddenly pulled off the ground and hurled against the wall. In addition, when a belayer is pulled high off the ground, this significantly increases the distance that the climber falls. If the climber is still near the ground, belayer and climber might collide. In the worst-case scenario, the climber might hit the ground.