Patent ID: 7779963

Claim:
A motorcycle comprising: an engine; an exhaust pipe, a head end thereof being connected to the engine, a rear section thereof including a main pipe, and first and second branch pipes connected to and branching from the main pipe towards a rear end of the exhaust pipe, the first branch pipe having a first exhaust port, the second branch pipe having a second exhaust port separate and distinct from the first exhaust port, the first and second branch pipes being formed such that respective axis lines thereof intersect when extended to a rear; and a muffler having a casing surrounding the rear section of the exhaust pipe, and sound absorbing material filled between the casing and the rear section of the exhaust pipe, wherein a cross sectional area of the casing, when viewed from an exhaust gas flow direction, increases as the casing extends toward the rear end of the exhaust pipe, so that the casing accommodates an increased amount of the sound absorbing material around the first and second branch pipes.