Patent ID: 8567542

Claim:
A vehicle comprising: a vehicle body frame; a plurality of wheels attached to the vehicle body frame; an internal combustion engine comprising a crankcase and a cylinder which extends upwardly from the crankcase proximate a central portion of the vehicle body frame; an exhaust pipe connected to a forward portion of the cylinder of the internal combustion engine; a main intake duct connected, via a throttle body, to a rearward portion of the cylinder; an air cleaner case which is operatively attached to the vehicle body frame, and an air cleaner element disposed in the air cleaner case; a transmission for transmitting torque output from the engine to the wheels; and a seat provided on the vehicle body frame, wherein the air cleaner case is provided on the vehicle body frame in front of the seat, and wherein the intake duct comprises: a first extending portion arranged to extend rearwardly from an outlet of the air cleaner element and to pass laterally of the throttle body; a curved portion curved inward of the vehicle body frame at a rear end of the first extending portion; and a second extending portion connected to a rear portion of the throttle body and configured to be wound around a portion of the throttle body.