A rear wheel suspension device includes: a swing arm swingably supported with respect to a vehicle body frame, the swing arm rotatably supporting a rear wheel; a rear cushion configured to be extended and contracted in accordance with swing of the swing arm; a cushion lever coupled to a lower end portion of the rear cushion; a cushion rod coupling the cushion lever and the swing arm; and an accumulator storing a working fluid that extends and contracts the cushion rod. A vehicle height is adjusted by displacement of the swing arm in accordance with extension and contraction of the cushion rod. The accumulator is positioned on a lower side of a swing shaft of the swing arm.

There is provided a saddle-ride type vehicle including: a rear wheel; a vehicle body frame including a pivot shaft extending in a vehicle width direction; a swing arm connecting the pivot shaft and the rear wheel; and a housing structure having a housing space of fluid inside the housing structure. The housing structure is disposed between the pivot shaft and the rear wheel and at a position overlapping the swing arm in a side view of the saddle-ride type vehicle.

A motorbike swingarm cover incudes a protective cover that covers at least a portion of the outer face of the motorbike swingarm. Said cover is secured to the motorbike swingarm through a cable lashing in the frontward portion of the cover, and a bracketed attachment in the rearward portion of the cover. Said bracketed attachment will secure onto both the cover and onto the motorbike swingarm by way of an included mounting feature on the swingarm.

A swingarm supporting structure can prevent rigidity of a case from becoming excessive and can improve a degree of freedom of design. The swingarm supporting structure includes: a case in which a power unit is stored; and a bracket for freely pivotally supporting a swingarm up and down through a pivot shaft. The swingarm supports an axle, and the bracket is detachably fixed to the case in a fixed direction intersecting the pivot shaft.

An assembling method of an electric vehicle comprises the steps of: assembling a vehicle body including a frame, wheels and an electric motor; conducting a vehicle body test including confirmation of a state of driving power transmission from the electric motor to the wheels by connecting an electric power supply unit installed in a vehicle body test place to the electric motor of the vehicle body and supplying electric power from the electric power supply unit to the electric motor; detaching the electric power supply unit from the electric motor and transporting the vehicle body which has passed the vehicle body test from the vehicle body test place to a mounting place, in a state in which a battery is not mounted to the vehicle body; and mounting the battery to the transported vehicle body in the mounting place.

A two-wheeled vehicle includes a frame having a front frame portion, a mid-frame portion, and a rear frame portion. The mid-frame portion is coupled to the rear frame portion and the front frame portion. The vehicle further includes a plurality of ground-engaging members for supporting the frame. The front frame portion is removably coupled to the mid-frame portion with a plurality of frame members extending between the front frame portion and the mid-frame portion.

An electric motorcycle includes a battery pack, a controller and a charging device arranged in sequence along the height direction of the frame. The battery pack and the charging device are positioned on the frame adjacent to the front wheel. The rear suspension comprises a rear fork and a shock absorber connected to the frame by a shaft, the rear fork is connected to the rear wheel, and the electric motor is arranged on the rear fork. The center of gravity of the electric motorcycle is lower. The electric motorcycle can run stably even at a speed of 120 km/h.

A motorcycle includes an electric motor having an output shaft defining a motor axis, a rear wheel drivably coupled to the electric motor to propel the motorcycle, a swingarm rotatably supporting the rear wheel, and a frame. The frame includes a main frame member supporting the electric motor and the swingarm. A case of the electric motor is a stressed member of the frame between the main frame member and the swingarm. The swingarm is coupled to the case of the electric motor to define a swingarm pivot axis that is co-axial with the motor axis.

A motorcycle with a swing arm element pivotably coupled to a holding element of the motorcycle via a rotary bearing is provided with a tensioning element. The motorcycle also includes a pulling member which engages two gear elements which are each spaced from the rotary bearing in a torque-transmitting manner. The first gear element is rotatably mounted separately from the swing arm element, and the second gear element is rotatably mounted on the swing arm element. The tensioning device for tensioning the pulling member is mounted rotatably and/or in an axially displaceable manner relative to the two gear elements on the swing arm element or on a frame of the motorcycle. The tensioning device includes at least two levers pivotable relative to one another, and a tensioning element which biases the levers against the pulling member to maintain consistent tension in the pulling member.

An electric motorcycle includes a driving command detecting device, a state value detecting device, an electric motor driving a drive wheel, a control unit for executing a non-normal mode causing output of the electric motor in a non-normal mode to differ from the output of the electric motor in a normal mode, the control unit configured to shift the electric motorcycle from one of the normal or non-normal modes to the other normal or non-normal mode, when the state value satisfies a predetermined shift condition, in one of the normal and non-normal modes, and a cornering determiner unit for determining cornering status, wherein the control unit causes a change in the output of the electric motor to be less, when the electric motorcycle is cornering and the shift condition is satisfied than when the cornering determiner unit determines the electric motorcycle is not cornering and the shift condition is satisfied.