Patent ID: 7234718
Filing Date: 2007-06-26
Classification: B62J,B62K

Abstract:
1. A bike frame comprising: (a) a front section comprising a neck, a down tube connected to said neck angling downward from and rearward of said neck, a crank attached to said down tube, a back bone attached to said neck, a seat tube attached to said back bone, a base tube having a front and a rear and a first axis having an angle of between approximately 5° to 40° greater than true horizontal, said base tube directly attached to said seat tube, a riser tube directly attached to the front of said base tube angling upward from and rearward of the front of said base tube connecting to said down tube and said crank; (b) a swing arm having a second axis with an angle of between approximately 5° to 40° greater than true horizontal, said swing arm directly and pivotably attached to said base tube at a point where said first axis intersects said second axis defining a pivot point thereat; and (c) a bias means attached to said swing arm at a first end at a point adjacent to said pivot point and at a second end to said seat tube.