The Delfast Super E-Bikes currently being used in Ukraine to sneak up on Russian forces are actually the design of UltraTRX Electric Bikes E-Cheetah and King E-Cheetahs, (Formerly Xtreme Fat Tire Bikes). Xtreme Fat Tire Bikes purchased the early prototypes from LeiLi Manufacturer in 2017, and at that time, Leili agreed to let Xtreme be the exclusive distributor of these