A saddle-riding type vehicle includes: a vehicle body frame; a swing arm supported in a swingable manner with respect to a pivot frame of the vehicle body frame; and a rear suspension in which a link arm supported by the swing arm and the pivot frame are coupled, and damping is controlled by a hydraulic oil. In addition, the saddle-riding type vehicle includes: a sub-tank provided in the rear suspension and storing the hydraulic oil; and a detection sensor that detects behavior of a vehicle body while traveling. Moreover, in a top view of the saddle-riding type vehicle viewed from above, the sub-tank and the detection sensor are disposed so as to overlap with each other.

A seat bench arrangement for a motorcycle is provided, with a tank bearing which is designed for connecting a tank bladder to a vehicle structure, and a seat bench for receiving a motorcyclist. The seat bench is connected to the tank bearing such that the tank bearing forms a bearing for supporting the seat bench.

A seat bench arrangement for a motorcycle is provided, with a tank bearing which is designed for connecting a tank bladder to a vehicle structure, and a seat bench for receiving a motorcyclist. The seat bench is connected to the tank bearing such that the tank bearing forms a bearing for supporting the seat bench.

A tank cap structure of an embodiment includes a cap body, a grip portion, a valve device, and a ratchet mechanism. The valve device includes a valve case which has a cylindrical shape about a screw axis and accommodates a float, and a valve body which has a tapered shape thinner than the valve case and extends toward an opening. The cap body includes a cylindrical receiving portion which has a cylindrical shape about the screw axis. A seal-receiving portion receiving a seal member held between the cap body and an oil filler port portion is provided on an outer circumferential surface of the cylindrical receiving portion. A valve-receiving portion receiving the valve device inserted into an inner circumference of the cylindrical receiving portion is provided on an inner circumferential surface of the cylindrical receiving portion.

A tank cap structure of an embodiment includes a cap body, a grip portion, a valve device, and a ratchet mechanism. The valve device includes a valve case which has a cylindrical shape about a screw axis and accommodates a float, and a valve body which has a tapered shape thinner than the valve case and extends toward an opening. The cap body includes a cylindrical receiving portion which has a cylindrical shape about the screw axis. A seal-receiving portion receiving a seal member held between the cap body and an oil filler port portion is provided on an outer circumferential surface of the cylindrical receiving portion. A valve-receiving portion receiving the valve device inserted into an inner circumference of the cylindrical receiving portion is provided on an inner circumferential surface of the cylindrical receiving portion.

A system having a motorcycle and a transportable radio device. The motorcycle has a frame with a steering head bearing seat and a drive unit, and a switch unit and a control device. The control device has wireless communication with the radio device for controlling operating modes of the motorcycle, depending on an authentication information transmitted from the radio device to the control device. The control device is configured for wireless transmission to the radio device of a blocking information which shifts the radio device into a sleep mode, in which mode communication of the radio device to the control device ceases. The control device also is configured for wireless transmission of a first and/or second piece of time interval information relating to the length of a first and/or second time interval to the radio device, at the end of which the radio device is shifted into the sleep mode.

A system having a motorcycle and a transportable radio device. The motorcycle has a frame with a steering head bearing seat and a drive unit, and a switch unit and a control device. The control device has wireless communication with the radio device for controlling operating modes of the motorcycle, depending on an authentication information transmitted from the radio device to the control device. The control device is configured for wireless transmission to the radio device of a blocking information which shifts the radio device into a sleep mode, in which mode communication of the radio device to the control device ceases. The control device also is configured for wireless transmission of a first and/or second piece of time interval information relating to the length of a first and/or second time interval to the radio device, at the end of which the radio device is shifted into the sleep mode.

A wheeled vehicle is disclosed. The wheel of the vehicle may be a powered wheeled vehicle with an engine and a transmission system. The transmission system may be used to select a gear ratio to a powered wheel of the wheeled vehicle, such as a single wheel.

A hybrid straddle vehicle comprises a hybrid traveling driving power unit including an engine and a traveling motor, the hybrid traveling driving power unit being configured to generate driving power for allowing the hybrid straddle vehicle to travel; a fuel tank which stores therein fuel to be supplied to the engine; and a battery unit which stores therein electric power to be supplied to the traveling motor. An outer end of the fuel tank in a vehicle width direction is located outward of the battery unit in the vehicle width direction.

A hybrid straddle vehicle comprises a hybrid traveling driving power unit including an engine and a traveling motor, the hybrid traveling driving power unit being configured to generate driving power for allowing the hybrid straddle vehicle to travel; a fuel tank which stores therein fuel to be supplied to the engine; and a battery unit which stores therein electric power to be supplied to the traveling motor. An outer end of the fuel tank in a vehicle width direction is located outward of the battery unit in the vehicle width direction.