"The Edelrid Ohm is the first product to try and succeed at fixing the unbalanced lead/belayer problem. As Edelrid says, “It is a solution for the problems experienced by climbing partners with a significant difference in weight.

“That is to say the risk for a heavier lead climber if their partner has difficulty controlling their falls and the risk for a lighter belayer if their partner’s falls pull them off the ground, hurling them against the wall. The Ohm is an assisted-braking resistor that you install at the first bolt in the safety chain.”" - Gripped Magazine

Great for indoor and outdoor use, the Edelrid Ohm Assisted Braking device increases the amount of rope friction so that a lighter-weight belayer can hold a heavier lead climber without difficulty.

• Ohm is attached at the first bolt in the safety chain.
• The Ohm makes it easier for a belayer to hold a fall and limits how high he or she is pulled off the ground; this can help reduce the distance a lead climber falls.
• Lowering a heavier climber is also easier to control.
• No additional friction can be detected when pulling up slack to clip.
• Recommended weight difference (lead climber > belayer): 25 - 85 lbs.; minimum belayer weight 85 lbs.

Specifications:

• Fits Rope Sizes: 8.9-11mm
• Weight: 360g