3812 smooth bike products are offered for sale by suppliers on Alibaba.com, of which electric city bike accounts for 3%, mountain bike accounts for 3%, and electric hybrid bike accounts for 3%.
A wide variety of smooth bike options are available to you, such as aluminum, steel and aluminum alloy.You can also choose from electronic, digital and sensor smooth bike,as well as from disc brake, v brake, and front and rear drum type smooth bike,and whether smooth bike is rear hub motor, or central motor.