INMOTION S1 Adult E-scooter have a wide aboard (25.6*7inch) and the highest load-bearing capacity in the industry (309lbs). 1000W motor and rear-wheel drive effortlessly scale slopes with a 30% incline. So that's why the INMOTION S1 is so popular with commuters - the smoothness of the ride.The acceleration is electronically filtered to provide the smoothest take-off and slow down on any electric scooter we have ever tested. So whether you are quickly accelerating up to the top speed of 18.6mph or cruising along at a steady pace, you will never feel the INMOTION S1 bounce you around. For riders who want to feel safe and have complete control over their scooter, this is a hugely important characteristic of riding the INMOTION S1.