... . 36V, 9ah, 220-250W 2. brushless DC motor 3. complete aluminum alloy frame 4. PAS(Pedalling assistant system) folding mini e ... lamp, bell, disc brake D. Key-locked lithium battery E. Aluminum alloy frame, DURABLE F. 40 Miles charging capacity takes you ... mini e bike 12" tyre/cheap folding electric bicycle with aluminum alloy frame PAS 36V key-locked lithium battery (CE)