Abstract: An electric bicycle includes a motor that includes a stator and a rotor and that is driven by a battery, a reduction gear, an output shaft configured to output power of the motor, a sprocket fixed to the output shaft, a housing, and a water jacket configured to cool the motor. The water jacket includes a flange section protruding outward in a radial direction of the stator, the flange section being formed in the water jacket at a side opposite to the reduction gear in a vehicle width direction.

Abstract: An electric bicycle includes a motor that includes a stator and a rotor and that is driven by a battery, a reduction gear, an output shaft configured to output power of the motor, a sprocket fixed to the output shaft, a housing, and a water jacket configured to cool the motor. The water jacket includes a flange section protruding outward in a radial direction of the stator, the flange section being formed in the water jacket at a side opposite to the reduction gear in a vehicle width direction.

Abstract: A swing arm structure includes pivot shafts extending in a vehicle width direction and disposed in a vehicle body frame, a pair of wall portions disposed in the vehicle width direction in the vehicle body frame, and an interposed portion disposed between the wall portions in a swing arm. The wall portions have wall portion-side pass-through portions, which receive the pivot shafts passed therethrough. The interposed portion has interposed portion-side pass-through portions formed therein at, out of both end portions in the vehicle width direction, portions facing the wall portion-side pass-through portions. The interposed portion-side pass-through portions receive the pivot shafts passed therethrough. The interposed portion has a non-pass-through portion formed therein at a middle portion in the vehicle width direction of the interposed portion. The non-pass-through portion does not receive the pivot shafts.

Abstract: A structure promoting a reduction in size and weight of a swing arm structure. Pivot shafts that extend in a vehicle width direction are disposed in the vehicle body frame. A pair of wall portions is disposed in the vehicle width direction in the vehicle body frame. An interposed portion is disposed between the wall portions in the swing arm. The wall portions have wall portion-side pass-through portions, which receive the pivot shafts passed therethrough. The interposed portion has interposed portion-side pass-through portions formed therein at, out of both end portions in the vehicle width direction, portions facing the wall portion-side pass-through portions, respectively. The interposed portion-side pass-through portions receive the pivot shafts, respectively, passed therethrough. The interposed portion has a non-pass-through portion formed therein at least at a middle portion in the vehicle width direction of the interposed portion. The non-pass-through portion does not receive the pivot shafts.

Abstract: A saddle-type electric vehicle is provided with a drive battery and an effectively placed motor unit. The drive battery is mounted directly under a main frame section of a vehicle frame, and the motor unit is fixedly supported to the vehicle frame. The motor unit includes a motor body disposed below a pivot connection of a rear swing arm, and at least a part of the motor body is disposed rearwardly of the pivot connection.

Abstract: A saddle-type electric vehicle is provided with a drive battery and an effectively placed motor unit. The drive battery is mounted directly under a main frame section of a vehicle frame, and the motor unit is fixedly supported to the vehicle frame. The motor unit includes a motor body disposed below a pivot connection of a rear swing arm, and at least a part of the motor body is disposed rearwardly of the pivot connection.

Abstract: A three- or four-wheeled motor vehicle such as a buggy includes a rear fork composed of first and second rear fork members having front ends pivotally mounted on a frame and rear ends supporting rear wheels, respectively, an axle housing having first and second axial ends, the first axial end being joined to the rear end of the first rear fork member, a rear axle rotatably supported in the axle housing, a gear case coupled between the rear end of the second rear fork member and the second axial end of the axle housing and accommodating a gear mechanism for driving the rear axle, and at least one cross member extending between and joined to the first and second rear fork members. The rear end of the first rear fork member has a first joining surface having at least one attachment hole defined therein and directed transversely of the frame. The first end of the axle housing has a second joining surface having at least one attachment hole defined therein and facing the first joining surface.