The invention relates to a bicycle frame, in particular to a bicycle frame stable in structure. An oblique beam is arranged between a vertical beam and a lower beam, an upper beam parallel to the lower beam is arranged between the oblique beam and a front-fork casing, a reinforcing rib is arranged between the upper beam and the lower beam, both the oblique beam and the lower beam are square-shaped beams, and edged reinforcing ribs are arranged on the square-shaped beams. An originally-designed upper beam arranged between a front-fork socket and a saddle casing is replaced by the oblique beams and the upper beam parallel to the lower beam, so that impact force can be scattered by the oblique beam and the upper beam; the reinforcing rib is arranged between the upper beam and the lower beam, so that strength of a bicycle body is effectively improved; both the oblique beam and the lower beam are square-shaped beams, and the edged reinforcing ribs are arranged on the square-shaped beams, so that the strength of the load-bearing beams of the bicycle body can be improved.


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    Title :

    Bicycle frame stable in structure


    Contributors:

    Publication date :

    2015-07-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B62K Fahrräder , CYCLES



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