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Ohm - Braking Assist Device
The Edelrid OHM is an innovative, new solution for the problems experience by climbing partners with a significant difference in weight. What that means is the risk for a heavier climber if their lighter partner has difficulty controlling their falls, and the risk for a lighter belayer if they are pulled off the ground and hurled against the wall. This problem is particularly inherent within climbing couples, where men tend to be significantly heavier than women. You can, of course, use a weight bag to balance the weight difference, but they are highly impractical to take everywhere with you and restrict freedom of movement. Autoblocking belay devices also assist with braking, but without a weight bag, the belayer still faces a sudden pull and the leader a heavy fall.
The Edelrid OHM is an assisted-braking resistor that increases rope friction, allowing the lighter belayer to safely catch falls. The climber attaches the OHM to their harness with the rope run through it, and, when they reach the first bolt, they simply clip the OHM to the anchor like they normally would a quickdraw. In the event of a fall, the rope is pulled into the device's braking mechanism, which reduces the braking force needed to be applied by the belayer and prevents them from being suddenly pulled off the ground, decreases the fall height of the leader, and allows for safe, dynamic arresting.
The OHM is not designed to affect rope handling. It enables smooth paying out and taking in rope when climbing and belaying and has no negative affect on handling when used both in indoor gyms and for outdoor sport climbing.
The OHM benefits both climber and belayer. The belayer can feel safe knowing they won't be hurt and have much more control of their partner's fall, and the lead climber can climb to their limits knowing they will not face a severely harsh fall every time they climb. Compact and light, the Edelrid OHM has been designed to be easy to carry and easy to use both indoor and out, so belayer and climber can perform to their full abilities without restrictions.