Specification: Brand CMSBIKE mini Frame material High-carbon steel Wheel materil Aluminum alloy Wheel diameter 12inch Motor 36V 250W brushless rear drive Speed Up to 25km/h Battery 36V 6Ah Continuous working time 25-30km Display dashboard LED power display dashboard Brake Front disc brake Saddle JUSTEK Saddle Chain KMC Chain Tire Chaoyang/Kenda Tire Expand size 108 x 55 x 99cm Folding size 108 x 22 x 60cm Color Black Weight 18kg Features: 250W motor provides the max 25km/h speed and max 30 degree gradient. 6Ah / 36V Li-ion battery ( included in product ) for max 25-30km mileage with pure electric mode. 12 inch inflatable rubber tire for different grounds. Folding design ( folding size: 108 x 22 x 60cm ) for convenient carrying. Adjustable heights of saddle and handlebar for different heights of people . Pedal mode, moped mode, and pure electric mode for choose. Suitable for adults and teenagers . Package included: 1 x Electric bicycle (Note: The package does not contain a child seat and needs to be purchased separately.)