Patent ID: 7621363

Claim:
A body frame for a motorcycle comprising: a first frame member and a second frame member, the first frame member and the second frame member being separated relative to each other; the first frame member extending from a head pipe to a crankcase of an engine, said first frame member being formed integrally with at least one engine support; the second frame member being disposed at a rear of the engine, said second frame member being formed integrally with at least one engine support; and a pivot portion of a rear swing arm being operatively mounted relative to the second frame member; the first frame member gradually expands toward the at least one engine support wherein approximately M-shaped projections are formed at an end of the first frame member, and the at least one engine support is formed at these projections, wherein the second frame member includes a cross member having an upwardly formed recess therein, and further including a muffler operatively connected to said engine wherein said muffler projects upwardly and is partially disposed within said upwardly formed recess.