The invention relates to a bicycle, in particular to a snowfield bicycle capable of positioning a center line twice. The snowfield bicycle capable of positioning the center line twice is characterized in that the distance between a portion of a rear axle fork frame, on one side of the snowfield bicycle, where a chain wheel is located, and the center line of a bicycle body is larger than the distance between another portion of the rear axle fork frame, on another side of the snowfield bicycle, opposite to the chain wheel, and the center line of the bicycle body, the length of a spoke of a rear wheel, on the side of the snowfield bicycle, where the chain wheel is located, in correspondingly larger than the length of another spoke of the rear wheel, on the side of the snowfield bicycle, opposite to the chain wheel, and the center line of a tire face of the rear wheel and the center line of the car body coincide. The snowfield bicycle capable of positioning the center line twice increases the distance between a side chain wheel of the chain wheel and the tire face of a tire of the rear wheel under the circumstance that the center lines of the car body and the tire face are not changed, and effectively prevents friction between the chain wheel and the tire.
Snowfield bicycle capable of positioning center line twice
22.04.2015
Patent
Elektronische Ressource
Englisch
IPC: | B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer |