An adjustable bicycle frame for change in the riding modes is provided with a bottom bracket secured to pedals; a seat tube extending upward out of the bottom bracket; a chain stay extending rearward out of the bottom bracket and the seat tube; a rear wheel rotatably secured to the chain stay and contacting the ground; a head tube with a stem pivotably secured thereto; a fork pivotably secured to the head tube and extending downward; a front wheel rotatably secured to the fork stay and contacting the ground; a rearward inclined telescopic tubing including first and second tubes. After changing length of the telescopic tubing, a length between the front wheel and the rear wheel is changed, an inclined angle of the seat tube is changed, and an inclined angle of the head tube is changed coherently, thereby implementing a racing mode or a slow, urban riding mode.


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    Title :

    BICYCLE FRAME STRUCTURE CAPABLE OF ADJUSTING FRAME LENGTH AND ANGLE


    Additional title:

    FAHRRADRAHMENSTRUKTUR MIT FÄHIGKEIT ZUR ANPASSUNG VON RAHMENLÄNGE UND -WINKEL
    STRUCTURE DE CADRE DE BICYCLETTE PERMETTANT D'AJUSTER L'ANGLE ET LA LONGUEUR DE CADRE


    Contributors:

    Publication date :

    2021-04-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B62K Fahrräder , CYCLES



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