The USurfer UM70 Electric Skateboard. Recharge time around 5 hours, max speed 20 km/h, max range 25 km, max slope climb 10 degrees. And if you weigh more than 100 kg, tough luck. We now use one of the most extensive testing facilities for electric vehicles in the world. The E-vehicle simulation lab (EVSL) can test for most road conditions and speeds up to and beyond the design parameters of the vehicle, providing a unique challenge for Europe’s most capable electric vehicles.