The Edelrid OHM is an innovative assisted braking resistor device designed to enhance safety when there is a significant weight difference between climber and belayer.
It increases rope friction at the first bolt, making it easier for lighter belayers to control a heavier climber’s fall without being lifted off the ground.

The OHM automatically activates when loaded, without interfering with normal rope feeding during climbing.
It is compatible with dynamic single ropes from 8.9 mm to 11.0 mm and installs easily on the first bolt of a climbing route.

Built from durable aluminum and stainless steel, the OHM offers reliable performance for indoor and outdoor sport climbing.
An essential tool for climbing partners with a weight difference of 10 kg or more.

Key Features:
• Increases rope friction at the first bolt
• Assists lighter belayers catching falls safely
• No manual activation needed — automatic operation
• Smooth rope feeding during lead climbing
• Compatible with 8.9–11.0 mm single dynamic ropes
• Robust aluminum and stainless steel construction
• Quick installation on first bolt or anchor
• Certified: CE EN 15151-1, UIAA
• Color: Green
• Made in Germany