Abstract: There is provided an exhaust device of a straddle-type vehicle. A first muffler body is arranged at one side, at which a drive chain is not arranged, in a region at the rear of a chamber. A second muffler body is arranged at another side, at which the drive chain is arranged. A first connection pipe interconnects the chamber and the first muffler body. A second connection pipe interconnects the chamber and the second muffler body. An exhaust control valve is configured to control a flow rate of exhaust air to circulate from an exhaust port toward the first muffler body via an exhaust pipe, the chamber and the first connection pipe. A part or all of the second connection pipe is formed to have a pipe shape by two or more plate materials, and has a non-true circular cross-sectional surface shape.

Abstract: There is provided an exhaust device of a straddle-type vehicle. A first muffler body is arranged at one side, at which a drive chain is not arranged, in a region at the rear of a chamber. A second muffler body is arranged at another side, at which the drive chain is arranged. A first connection pipe interconnects the chamber and the first muffler body. A second connection pipe interconnects the chamber and the second muffler body. An exhaust control valve is configured to control a flow rate of exhaust air to circulate from an exhaust port toward the first muffler body via an exhaust pipe, the chamber and the first connection pipe. A part or all of the second connection pipe is formed to have a pipe shape by two or more plate materials, and has a non-true circular cross-sectional surface shape.