Abstract: A motorcycle has an exhaust system configured to extend below the engine while providing a sufficient length and a sufficient angle of through which the motorcycle can lean. A muffler unit comprises a first muffler connected with the exhaust pipe unit and disposed between the engine and a rear wheel. The muffler unit also comprises a second muffler that is connected with the first muffler and that is disposed near the side of the rear wheel. The first muffler comprises inclined portions that are formed on the left and right sides of the first muffler when viewed from the front of the vehicle. The second muffler has inclined portions that extend at an angle approximately equal to that of the inclined portions of the first muffler.

Abstract: A system for discharging exhaust air from a radiator in a straddle type vehicle (e.g., a motorcycle) is provided that can discharge heated air from the radiator to the outside of the vehicle in an efficient manner. The system comprises a radiator that can be positioned farther forward than an engine in the straddle type vehicle. A front cowl at least partially covers the front portion of the vehicle, including the radiator and engine. The front cowl comprises at least one vent passage for receiving outside air and directing such air rearward and at least one discharge port for discharging exhaust air from the radiator. Because of a pressure difference occurring due to high-speed air current flowing along the at least one vent passage, the heated exhaust air can be positively discharged from the radiator through the at least one discharge port.

Abstract: A system for discharging exhaust air from a radiator in a straddle type vehicle (e.g., a motorcycle) is provided that can discharge heated air from the radiator to the outside of the vehicle in an efficient manner. The system comprises a radiator that can be positioned farther forward than an engine in the straddle type vehicle. A front cowl at least partially covers the front portion of the vehicle, including the radiator and engine. The front cowl comprises at least one vent passage for receiving outside air and directing such air rearward and at least one discharge port for discharging exhaust air from the radiator. Because of a pressure difference occurring due to high-speed air current flowing along the at least one vent passage, the heated exhaust air can be positively discharged from the radiator through the at least one discharge port.

Abstract: A motorcycle has an exhaust system configured to extend below the engine while providing a sufficient length and a sufficient angle of through which the motorcycle can lean. A muffler unit comprises a first muffler connected with the exhaust pipe unit and disposed between the engine and a rear wheel. The muffler unit also comprises a second muffler that is connected with the first muffler and that is disposed near the side of the rear wheel. The first muffler comprises inclined portions that are formed on the left and right sides of the first muffler when viewed from the front of the vehicle. The second muffler has inclined portions that extend at an angle approximately equal to that of the inclined portions of the first muffler.