Abstract: A bicycle wheel structure comprises a main shaft tube, a shaft, a shaft pivoting member, a plastic wheel rim, and a wheel tire. The shaft is received in the main shaft tube in conjunction with the shaft pivoting member. The main shaft tube is provided in the side wall with a plurality of through holes via which a plastic inner tube is formed on the inner wall of the main shaft tube at the time when the plastic wheel rim is formed on the main shaft tube by injection molding. The inner tube serves as an anchorage to hold the plastic wheel rim firmly on to the main shaft tube. The plastic wheel rim is provided in the outer surface with a receiving slot which is in turn provided in the inner wall with a plurality of projections to retain the wheel tire that is mounted in the receiving slot.