This page tells you what the machine is. Step-by-step instructions, common mistakes and a video of the movement are in the Luio app — the video shows the range of motion that text cannot describe.
⚠️ Most common mistake: Lifting the forearm off the bench, which turns the rep into a small curl and removes tension from the forearm. Using too heavy a weight and barely moving through the wrist, cutting the working range in half. Skipping the let-the-bar-roll-into-the-fingers phase, which leaves out the deepest grip and forearm work. Speeding through the lowering phase instead of controlling it, where most of the forearm growth comes from.
💪 Where you should feel it: Mainly in the Hauikset.
Variations and alternatives
Same muscle and movement pattern with different equipment.