Abstract: A bicycle for driving downhill with a front wheel region, a rear wheel region, and a support rod which couples the front wheel region and the rear wheel region, the support rod having at least one hinge for unfolding and folding and has a front rod portion between the front wheel region and the hinge and a rear rod portion between the rear wheel region and the hinge, a foot rod is pivotably mounted with a coupling portion to the support rod and has a footrest region for resting feet of a user of the bicycle, and the bicycle includes a tension rope system having a first rope tensioning portion and a second rope tensioning portion, wherein the first rope tensioning portion is coupled to the foot portion and the front rod portion, and the second rope tensioning portion is coupled to the foot portion and the rear rod portion.