Abstract: A disc rotor of a disc brake device for a vehicle, the disc rotor being substantially disc-shaped, is disclosed, including a flange portion with which the disc rotor is mounted on a wheel of the vehicle, and a brake portion formed coaxially with a rotational axis of the disc rotor and configured to be seized by a caliper of the disc brake device, wherein the brake portion is configured to protrude in one direction of the rotational axis relative to the flange portion.

Abstract: To provide an air intake system for a vehicle, so simple in structure as to reduce the cost and effective to increase the ram pressure, a front cowling (19) is mounted on a front portion of a vehicle body structure (1). This front cowling (19) has left and right headlight windows (20 and 21) aligned with left and right headlights (22 and 23), respectively, and also has an air intake opening (24) defined therein at a location above the headlight windows (20 and 21) for introducing an external combustion air (A) towards the vehicle engine (E). An intake air passage (35) is provided for introducing the combustion air (A), then entering the air intake opening (24), towards an air cleaner (30) by way of opposite lateral portions of a head tube (3).

Abstract: An oil pressure generator for a vehicle is disclosed, including a bar-shaped steering handle having a pipe structure, a lever pivotally mounted in the vicinity of an end portion of the handle, and a master cylinder for a hydraulic brake or a hydraulic clutch, the master cylinder being configured to house a piston movable according to an operation of the lever, wherein the master cylinder is located within the handle.

Abstract: An oil pressure generator for a vehicle is disclosed, including a bar-shaped steering handle having a pipe structure, a lever pivotally mounted in the vicinity of an end portion of the handle, and a master cylinder for a hydraulic brake or a hydraulic clutch, the master cylinder being configured to house a piston movable according to an operation of the lever, wherein the master cylinder is located within the handle.

Abstract: A disc rotor of a disc brake device for a vehicle, the disc rotor being substantially disc-shaped, is disclosed, including a flange portion with which the disc rotor is mounted on a wheel of the vehicle, and a brake portion formed coaxially with a rotational axis of the disc rotor and configured to be seized by a caliper of the disc brake device, wherein the brake portion is configured to protrude in one direction of the rotational axis relative to the flange portion.

Abstract: To provide an air intake system for a vehicle, so simple in structure as to reduce the cost and effective to increase the ram pressure, a front cowling (19) is mounted on a front portion of a vehicle body structure (1). This front cowling (19) has left and right headlight windows (20 and 21) aligned with left and right headlights (22 and 23), respectively, and also has an air intake opening (24) defined therein at a location above the headlight windows (20 and 21) for introducing an external combustion air (A) towards the vehicle engine (E). An intake air passage (35) is provided for introducing the combustion air (A), then entering the air intake opening (24), towards an air cleaner (30) by way of opposite lateral portions of a head tube (3).

Abstract: An intake apparatus is provided for an engine of a vehicle. The intake apparatus can introduce fresh air under the vehicle's large running wind pressure. The intake apparatus also allows the opening area and profile of an air inlet to be selected freely. The intake apparatus includes a pair of intake ducts 13 for introducing the air into the engine and an air-introducing duct 15 connected to respective upstream ends of the intake ducts 13 to provide the air inlet 14. The air-introducing duct 15 is formed independently of a cowling 16 fitted to a front of the vehicle. The air-introducing duct 15 has its leading end 15a positioned ahead of a leading end 16a of the cowling 16.