Ephesus S5 being the best outdoor mobility scooter is recommended to be used outdoors. This is because it is designed to handle harsh road conditions such as muddy, grass, brick, and cobblestone roads. Ephesus S5 also is able to go up to an incline of 12 degrees, making it the perfect power scooters for seniors. We recommend riding your electric mobility scooter on the sidewalk, however, you may also ride your motorized wheelchair scooter on the bike lane.