GITANE real city bike e-bike 3, 26 inches. Central crank motor PANASONIC 26 V Lithium-ion battery 25.2 Volts / 12.2 A (new) Assistance modes: 3 levels (Eco, Normal, Power). Hub with automatic gears featuring a sensor that calculates your pedaling speed to shift gears (3 speeds) completely autonomously, without any intervention from you on the handlebars.