The Zero-10 model is a single motor scooter but it is still over 50lbs. I thought I could carry it just by the stem but I found out that the combination of its weight and thickness of the stem made it hard to carry especially thru doorways. This strap has allowed me to have much greater comfort in my hand and it is easier to carry the scooter for short distances. I would recommend this to anyone with this type of scooter for sure!!