Patent ID: 8713923

Claim:
An exhaust system for a motorcycle, comprising: a plurality of exhaust pipes connected respectively to exhaust ports of cylinders of a multi-cylinder engine; a catalyst chamber connected to two of the exhaust pipes; and a muffler connected to a downstream side of the catalyst chamber, the catalyst chamber being disposed below the engine, wherein the catalyst chamber is disposed sideways of an oil pan disposed below the engine so as to overlap the oil pan when seen in a side view of the motorcycle, and the two of the exhaust pipes are connected to the catalyst chamber from a front side of the motorcycle, wherein the catalyst chamber is disposed directly below only one of a left portion and a right portion of the oil pan, the two of the exhaust pipes are disposed directly below the one of the left portion and the right portion of the oil pan, one of the two of the exhaust pipes is disposed directly below the other one of the left portion and the right portion of the oil pan, and the oil pan has an oil storage chamber at a central portion of the oil pan that is between the left portion and the right portion of the oil pan.