| 摘要 |
A motorcycle having a frame, at least two wheels mounted for rotation relative to the frame, an engine coupled to the frame, and an air intake system coupled to the engine. The air intake system includes an intake port having an intake axis along which air enters the intake port, and an airbox having an inlet opening in communication with the atmosphere and an outlet opening in communication with the intake port. The airbox further includes a contoured baffle positioned adjacent the intake port and adapted to guide air from the inlet opening toward and into the intake port. The contoured baffle preferably includes a guide surface (e.g., a three-dimensionally contoured surface that approximates a tractroid) positioned substantially in alignment with the intake axis. For example, a least one tangent line of the guide surface can pass through the intake port.
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