High performance full-size scooter for the serious rider. Sterling got one of our Blauwerk Sidewalker downhill scooters and a Heinzman Estelle retrofit kit (modified with a power rip cord) and installed it himself - good job Sterling. He carries the battery in his backpack. He already ordered a second setup for a friend. He tells me he is running errands for the neighbors, their cars stay in the garage :) Thanks for sending the pictures Sterling, and go easy on your dog.