Spoke-free hollow middle shaft bicycle

The invention discloses a spoke-free hollow middle shaft bicycle, which is characterized in that: a front wheel and a rear wheel are not provided with spokes or hubs; an inner gear is arranged along the internal diameter of the rear wheel for transmission; and a middle shaft consists of two large-internal-diameter deep groove bearings. The bicycle has the advantages that: the front wheel and the rear wheel are not provided with the spokes or the hubs, so that the wheels do not deform; the bicycle is more powerful and more stable by using a transmission mode that the transmission gear is matched with the inner gear, the distance from a flywheel to a chain wheel is short, the gear transmission mode and the chain transmission mode can be randomly adjusted and changed, and the transmission mode thereof is flexible and variable; and the bicycle looks like that a small circle is clamped by two big circles, so that the external appearance of the bicycle looks intangible and miraculous. The front wheel (1), the rear wheel (2), a front fork (3), a transmission frame (4), the chain wheel (5), a hollow middle baring (6), a crank (7), a middle gear (8), the flywheel (9), the transmission gear (10) and other bicycle members are assembled together to form the entire bicycle provided by the invention; and the bicycle can be manufactured into a series of products.