2-in-1 Pulley Adapter to Join Two Cables, 1:1 Ratio

2:1 or 1:1 ratio, what the adapter changes

On a two-cable pulley with a 2:1 ratio, the resistance you feel is about half the load: with 20 kg loaded, you pull about 10 kg. The 2-in-1 pulley adapter joins both cables at a single attachment point. Both cables work together, the ratio becomes 1:1 and you feel the full 20 kg. This is the case on the PR-Basic adjustable pulley.

The benefits of the 2-in-1 pulley adapter:

• Increases the actual load: lets you feel 100 % of the weight loaded, ideal for building strength.
• Makes exercises more effective: removes the load reduction of 2:1 ratio systems for more intense movements.
• Easy to install: attaches in seconds to two cables ending in a carabiner or ring.
• Ideal for progressive overload: lets you add more tension and work the muscles harder.

Technical specifications

Which machines can the 2-in-1 Pulley Adapter be used on?

The 2-in-1 pulley adapter is used on machines with two cables. It is particularly useful on pulleys with a 2:1 ratio, as it increases the felt load and intensifies the exercises:

• High and low pulleys, ideal for exercises such as the lat pulldown or the seated row.
• Multi-function station, where it increases the intensity of biceps curls, triceps extensions or chest flyes.
• Adjustable pulley machines, used for functional exercises such as the face pull or the horizontal row, giving a load that matches the effort more faithfully.
• Leg pulleys, allowing better hamstring work with the leg curl or more intense glute work with the kickback.

Our guides: pulley optimisation and maintenance.

Frequently asked questions

What is the 2-in-1 pulley adapter for?

To link two cables and turn a 2:1 pull ratio into 1:1: you then feel 100 % of the weight loaded, which is useful for progressive overload and heavy exercises.

Which machines is the adapter compatible with?

With two-cable pulleys, especially at a 2:1 ratio: adjustable pulleys, high and low pulleys, multi-station machines and leg pulleys.

Is it easy to install?

Yes, it is sturdy, simple and quick to attach to the cables.

Does it work on a single-cable pulley?

No, it is designed to join two cables at a single attachment point.

Which Uni Strength pulleys can it be used with?

With the PR-Basic adjustable pulley, which works at a 2:1 ratio. The CS-Basic high and low pulley is already 1:1 and does not need it.

Are carabiners included?

No, the adapter comes on its own, without carabiners. Plan one carabiner per cable and one for the handle.