Summary: Many people believe that resistance bands and cables are the same thing, but physics says otherwise. We explain why BOLDR and the linear resistance from our electromagnetic motor are crucial for building balanced strength without the "dead zones" created by rubber bands.
WHY YOUR BODY PREFERS CABLES
When we started looking at portable solutions for home training, we quickly realized that the biggest competitor wasn't dumbbells, but resistance bands. However, for those of us who train seriously, we also knew that bands have a fundamental problem: the elastic curve. A rubber band is at its lightest when the muscle is in its weakest position and heaviest right at the end of the stretch. This creates an uneven load where you often "lose" contact with the muscle at the beginning of the movement.
BOLDR works completely differently. Inside the unit sits our electromagnetic motor that creates a constant, linear resistance. If you set 15 kg, you have 15 kg from the first centimeter to the last. It’s exactly the feeling you get from a professional cable machine at the gym, but in a format we’ve made portable. For us, it was absolutely crucial to offer this smooth loading, as it is what builds stability and strength throughout the entire range of motion. Want to dive deeper into how we control the tech? Read about how we developed the software to match the hardware here.
STOP GUESSING – START TRAINING
Another major disadvantage of resistance bands is that it’s almost impossible to know how much you’re actually lifting. Is it the "red band" or the "blue one"? With BOLDR, we’ve removed the guesswork. You set your exact weight in the app, and our motor delivers it with digital precision. This allows you to actually utilize progressive overload – the only scientifically proven method for getting stronger over time.
We’ve ensured that BOLDR is built to withstand this type of constant load. We offer a 2-year warranty and ship everything from our warehouse in Malmö, specifically because we want you to feel the same security in your equipment as you do at your local gym. Being able to train with 30 kg of resistance in a controlled cable path is a game changer for home workouts. Curious about how our users maximize their sessions? Follow us on Instagram for daily inspiration.