Get that Dusty Self-balanced Scooter working again with this easy DIY Fix! 2 Replacement Scooter Motors Motors for Smart Electric Wheel 8.5 Inch Unicycle Scooter 2pcs DIY NEW aggressive tread (8.5" OD and 3.5" Wide!) for better traction on uneven or slick surfaces **Great for Go-carts and other EV projects** Balance Scooter ***Important***Please Contact us prior to purchase if you plan on buying more than 1 set and we will send an updated invoice.