Designed for Safety & Reliability
A discreet, unassuming rollerskate, that performs but never screams. On which one can count. That always does the job, and does so safely. This is what modern commuters deserve.
Advanced yet invisible engineering went into the KoumKoum to make it deliver in every situation. From Made-in-Europe electronics and metal components, to extra safety measures usually found only in electric cars, this pages gives a peek of what makes the KoumKoum beat.
Brake on Full Batteries
Electric brakes, as found on hoverboards, monowheels, electric skateboards and electric rollerskates, transform movement into electricity. Used to charge the battery.
But what if the battery is full? Most devices simply don't allow braking anymore! The KoumKoum uses a brake resistor to transform movement into heat, which works even on a full battery!
As the resistor heats up, the KoumKoum progressively slows down so the temperature of the aluminium frame never exceeds 50°C.
Safe braking, safe temperatures.
Electro-Mechanical Reliability
Hall-effect sensors allow an electric motor to know its position, so it can rotate to the next one. They are a corner-stone of electric mobility, but incur costs, assembly complexity, and are prone to failure over time.
Can we omit these sensors? Yes! Using the most advanced Sensorless Field-Oriented Control algorithm, the KoumKoum avoids failure-prone components from its frame, reduces costs, yet provides smooth and powerful electric assistance.
Quietly Going Uphill
Enjoying an electric ride is like being gently but firmly pushed forward. This pushing force is expressed in kilograms. The more, the better for going uphill.
Most hoverboards, skateboards and cheap e-scooters have a pushing force of about 20kg. Electric bicycles: 30kg. Power e-scooters: 40kg.
Our special motors, electronics and algorithms allow the KoumKoum to push up to 30kg, smoothly, without vibrations. This allows a 100kg person to go up a 15% slope, easily.