Arbpro Gemini Knee Ascender

The Gemini Knee Ascender from Arbpro is an innovative concept for knee ascenders. Instead of using a traditional bungee cord to pull the ascender, the Gemini Knee features a powerful integrated steel spring that releases and retracts the cord automatically, increasing efficiency. The ascender is equipped with a convenient locking lever that limits the movement of the cam, helping to prevent accidental rope releases during climbing.

The Gemini Knee can be easily connected to the chest harness using the provided snap. Attaching it to the operator’s foot is also very simple. The kit includes two different straps that can be swapped by the user depending on the type of footwear being used. If using an Arbpro boot equipped with the EZLoop connection system, it is sufficient to install the strap with the snap. For all other types of boots simply install the standard sling with adjustable foot loop. This makes the system compatible with all common climbing boots for an efficient, energy-saving, and compact rope ascent.