Elevated bicycle-based transportation system, connection apparatus for bicycle and modified bicycle

An elevated bicycle-based transportation system, comprising:

• a bicycle;
• a front suspension member, connected to a front portion of said bicycle and having on the upper end a rolling, sliding, or gliding member;
• a rear suspension member, connected to a rear portion of said bicycle and having on the upper end a rolling, sliding, or gliding member;
• and,
• an overhead track, which is a supporting member substantially horizontal in orientation, on which said rolling, sliding or gliding members of said front suspension member and rear suspension member rest;
• and wherein
• when said suspension members are not suspended from the overhead track, said bicycle can be used in the normal manner;
• said suspension members are of such lengths, relative to the height off the ground of said overhead track, the dimensions of said bicycle, and the positions of connection to said bicycle of said front and rear suspension members, that the tires of said bicycle are raised off the ground, so that said bicycle can travel, suspended in air and bearing a human bicycle rider by means of said front and rear suspension members, along said overhead track;
• and,
• when said bicycle is used as an ordinary bicycle, at least one among said front suspension member and said rear suspension member can be retracted, collapsed, folded, pivoted, detached, or otherwise modified by a simple operation, to assume a less prominent position which does not impede normal use of the bicycle.