Patent ID: 8382135

Claim:
A non-motorized sand-rideable bicycle comprising: an open frame having an expanded width for accommodating oversized tires, wherein the expanded open frame comprises laterally spaced struts, a front yoke rotateably supported on a forward portion of said frame, said open frame includes spaced-apart rear extension arms, a pair of balloon tires comprising a front balloon tire rotateably attached to said yoke and a rear balloon tire rotateably attached to said spaced-apart rear extension arms, a drive sprocket rotateably attached to said frame, wherein said drive sprocket is disposed within said expanded frame between said laterally spaced struts, pedals attached to said drive sprocket and laterally disposed on opposing sides of said laterally spaced struts of said expanded open frame, a rear sprocket coupled to drive said rear tire, a drive chain between said drive sprocket and said rear sprocket, and a seat attached to said frame, a width of said front and rear balloon tires being of a size and inflated to a pressure to ride up and over loose sand, such that said sand-rideable bicycle can be started with minimal effort by an individual on said seat and such that forward motion of said bicycle on said sand is not impeded by the minimal penetration of said balloon tires into said sand, said rear tire includes a plurality of transverse exterior ribs about a circumference of said rear tire, and at least one annular rib around a periphery of said rear tire that extends radially above said transverse exterior ribs, such that said bicycle may be ridden vibration-free over a hard surface, with said annular rib preventing said transverse exterior ribs from touching said hard surface.