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Ohm, assisted-braking resistor

Ohm, assisted-braking resistor

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Assisted-braking resistor to increase rope friction when there is a large weight difference between belayer and lead climber. In the event of a fall, the OHM increases the amount of rope friction so that a lighter belayer can hold a heavier lead climber without difficulty.

  • Belayer requires significantly less hand braking force to arrest a fall.
  • Lowering a heavier climber is much easier to control.
  • OHM is attached at the first bolt in the safety chain. Should a lead climber fall at the first bolt, the OHM significantly reduces the risk of a possible ground fall.
  • Rope handling when belaying a lead climber not affected (no additional friction when paying out rope).
  • Recommended weight difference (lead climber > belayer): 10-40 kg
  • Minimum weight belayer: 40 kg
  • For single ropes with a diameter of 8.9-11 mm
  • Certification: CE 0123
  • Made in Germany


All orders over € 39.95 within the Netherlands and Belgium will be delivered on your doorstep for free! For all orders below this amount, you’ll be requested to pay a € 6.95 contribution to the shipping costs.

Please check the table below for shipping rates to other countries:


Country Rate Country Rate
Netherlands Free/€6.95 Monaco €13.95
Belgium Free/€6.95 Norway €23.95
Germany €8.95 Poland €18.95
Luxembourg €11.95 Portugal €16.95
Slovakia €15.95
Austria €13.95 Slovenia €19.95
Czech Republic €15.95 Spain €14.95
Denmark €13.95 Sweden €18.95
Finland €18.95 Switzerland €23.95
France €13.95 United Kingdom €23.95
Hungary €18.95
Ireland €17.95 Rest of Europe €25.00
Italy €14.95 Rest of the World €40.00

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