Patent ID: 8152189

Claim:
A bicycle frame configured to receive front and rear wheels, the frame comprising: a front section comprising a front frame portion having a front coupling configured and dimensioned to receive a front wheel support member and to allow a rotational degree of freedom between the front coupling and the front wheel support member, the front frame portion defining a central vertical plane of the frame; and a rear section comprising a drive link case, the drive link case comprising an upper tube, a lower tube, a rear hub housing, and a front sprocket housing all integrally arranged with each other to form a rigid drive link case having an opening disposed between the upper and lower tubes, the drive link case being connected to the front frame portion via the front sprocket housing; the drive link case being disposed eccentric to the central vertical plane such that the rear section is configured as a one-sided rear section, the drive link case being cantilevered rearward from the front sprocket housing, the front frame portion extending forward from the front sprocket housing.