The same answer I received, I gave these things out like hot cakes during the holidays to my family and friends. Motors are brushed so they are starting to fail. There is one place I found them, https://micro-motor-warehouse.com/products/cl-1020-12, but a little cautious to order since some have waited months. I may try this place once the quarantine is lifted - https://www.modelhelicopters.co.uk/heli-multirotor-spares/multirotor-spares/default-category-heli-multirotor-spares-multirotor-spares-propel-starwars-tie-fighter/starwars-speeder-bike.html