Patent ID: 7686317

Claim:
An improved ellipticycle including the front fork and head tube of a bicycle; two parallel lengths of bicycle tubing welded at their forward ends to said head tube and bolted at their aft ends to a cast aluminum gear case; a crank shaft rotatably mounted in the forward portion of said gear case with the ends of said crank shaft extending outboard of said gear case; a crank arm fixed on each outboard end of said crank shaft; a spindle fixed in the end of each of said crank arms; a pedal beam rotatably mounted on each of said spindles near the center of said pedal beam; a track roller bolted on each side of said gear case near the aft end of said gear case; a length of steel angle riveted along the inner side of each of said pedal beams near their aft ends; and an inboard facing leg of each of said steel angles located under each of said track rollers.