eu stock stio v8 electric bike 48v 15ah 750w motor power 45km/h max speed 20-inch 4.0 fat tire electric bycycle 150kg load ouxi

the ultimate retro appearance industrial design (in 3 aspects,
a. comfort of use: perfect ergonomic design,
b. structure: the structural design for large-capacity batteries,
c. vision: exquisite and beautiful, high-end texture). 7-speed mechanical shifting, usb for mobile phone charging. the popular fat tires in europe and america are 20-inch 4.0 fat tires. turn on the digital password to avoid the trouble of key loss, the accelerator can be locked, and better adapt to local laws. 48v 15ah power , sufficient energy, strong power..syi