PARAMETER Frame Aluminum alloy frame Handlebar Aluminum alloy Handlebar Sit Tube Aluminum alloy Pedaling Non-slip pedal Tire 700C Brake lever Front Rear disc brake + power brake Front fork Aluminum alloy can lock the suspension fork Stem Aluminum adjustable handlebar Car seat Ergonomic saddle Transmission System SHIMAN0 24SPEED Rims 700C aluminum alloy rims Motor 48V 250W high speed motor Battery 48V10AH +48V20AH Double lithium battery Appropriate Height 160-185cm Packing Size 140*20*76cm N.W. 30kg