Abstract:
A mudguard structure for a straddle-ride vehicle suppresses the enlargement of an attachment portion of a mud shield plate and makes satisfactory the external appearance of the circumference of a rear fender. A mudguard has left and right erecting walls erecting to the rear from respective left and right outer edges thereof and a front-lower concave portion integrally continuing into a lower portion of a rear wheel runout concave portion of a rear fender. A box-like attachment portion for attachment to the rear fender is located at each of both, left and right, sides of the upper end portion of the mudguard.
Abstract:
A motorcycle has a rear fender configured for strength and rigidity when the rear fender is lifted upwardly, while minimizing mass thereof. The motorcycle includes main frame sections extending rearwardly from a head pipe, left and right pivot plates attached to rear ends of the main frame sections and extending downwardly, and a swing arm, having a front end supported on the pivot plates to be swingably movable thereon, and a rear end configured to support a rear wheel. The motorcycle also includes left and right seat rails for supporting a seat thereon, left and right reinforcing rods extending between the seat rails and the pivot plates, and a rear fender mounted on the seat rails above the rear wheel. The rear fender includes projecting portions supported at front end portions thereof by front mounting flanges, the projecting portions projecting forwardly and contacting the seat rails from above.
Abstract:
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, an exhaust system includes an exhaust pipe connected to the cylinder head, and a resonator having a communication hole in communication with an inside of the exhaust pipe. 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, while the resonator is arranged in a space between the exhaust pipe and the cylinder, and is joined to a side surface of the exhaust pipe facing inwardly of the motorcycle.
Abstract:
In a muffler which includes an outer tube which configures an outer wall, an inner tube provided in the outer tube and having punching holes formed therein, and a sound absorbing material filled between the outer tube and the inner tube, and which is attached to an exhaust pipe for exhausting exhaust gas from an engine, the number of punching holes at portions of the inner tube which have a great length to the outer tube is set greater than the number of punching holes at portions of the inner tube which have a small length to the outer tube in comparison with the portions having the great length.