Patent ID: 8622168

Claim:
A motorcycle exhaust system structure in a motorcycle in which an internal combustion engine including a crankcase, a cylinder, and a cylinder head is attached to a vehicle body frame, the motorcycle exhaust system structure comprising: an exhaust pipe connected to the cylinder head; an exhaust protector provided to the exhaust pipe; and a resonator having a lateral wall facing the exhaust pipe and a communication hole extending through the lateral wall and in communication with an inside of the exhaust pipe; wherein: the exhaust pipe is curved after being extended forward from the cylinder head and is then extended rearward in such a manner as to pass by a lateral side of the cylinder above the crankcase; the resonator is arranged in a space between the exhaust pipe and the cylinder, and the lateral wall of the resonator is directly joined to a side surface of the exhaust pipe facing inwardly of the motorcycle; a supporting recessed portion which forms a space between the resonator lateral wall and an outer surface of the exhaust pipe is formed in the resonator lateral wall; the exhaust protector is placed on a side of the exhaust pipe opposite the resonator with the exhaust pipe interposed therebetween, and the exhaust protector is supported by a band member inserted through the supporting recessed portion.