A steering structure for a saddle riding vehicle includes a suspension arm, a head pipe supported by a tip portion of a suspension arm, a stem shaft pivotably inserted through the head pipe, a front fork structure body integrally pivotably connected to a lower end portion of the stem shaft, a handle support section disposed above the head pipe, a handle steerably supported by the handle support section, and a bending link configured to transmit a steering operation of the handle toward a front wheel, wherein the bending link has an upper end portion connected to a side of the handle and a lower end portion connected to a side of the front fork structure body.

A front suspension (4) of the telescopic type with anti-dive effect, comprising at least one sheath (32) and at least one stem (36), housed and guided telescopically inside said sheath (32) according to a direction of the fork axis Z-Z, the suspension (4) comprising a foot (44) associated to the sheath (32) or to the stem (36) that rotatably supports a wheel spindle (44) of an associable front wheel (12) defining a rotation axis X-X, a braking device (52) for the associable front wheel (12), having a support (56) rotatably mounted with respect to the wheel spindle (44) so as to be able to oscillate about the rotation axis X-X. Between the support (56) of the braking device (52) and the foot (44) of the suspension (4) are interposed transfer means (64) of the braking force, exerted by the braking device (52), on an element (32, 36) between the sheath (32) and the stem (36) that does not support the foot (44). Said transfer means (64) comprise a cam (68) hinged to the foot (44) in a first hinge point (72), kinematically connected to the braking means, and mechanically connected to a portion of the suspension (4) integral with the element (32, 36) between the sheath (32) and the stem (36) that does not support (56) the foot (44) so as to transfer thereto, in the direction of the fork axis Z-Z, a part of the braking force.

A frame of a vehicle includes a front fork unit pivotably connected to a head tube of a vehicle body mechanism, a crank axle disposed on the front fork unit for two front-wheel cranks to be pivoted thereon. Two front wheels are pivotably disposed on the cranks, respectively. A front-wheel counteracting mechanism is pivotably connected between each of the cranks and the front fork unit to transmit an impact force to the cranks so as to cause opposite upward and downward movements of the front wheels to thereby keep the front wheels in contact with the ground and to render movement of the vehicle steady and safe.

A steered wheel support structure of a vehicle, includes a knuckle member which supports an axle of a steered wheel and a support member which is coupled to a vehicle body and supports the knuckle member from a first side in a vehicle width direction in such a manner that the knuckle member is angularly displaceable around a steering axis line, the knuckle member includes: an axle support section which supports the axle; and two supported sections disposed on both sides in the upward and downward direction, of at least a portion of the axle support section, the two supported sections facing each other and being apart from each other in the upward and downward direction, and the two supported sections are supported by the support member in such a manner that the two supported sections are angularly displaceable around the steering axis line relative to the support member.

A steered wheel support structure of a vehicle, includes a knuckle member which supports an axle of a steered wheel and a support member which is coupled to a vehicle body and supports the knuckle member from a first side in a vehicle width direction in such a manner that the knuckle member is angularly displaceable around a steering axis line, the knuckle member includes: an axle support section which supports the axle; and two supported sections disposed on both sides in the upward and downward direction, of at least a portion of the axle support section, the two supported sections facing each other and being apart from each other in the upward and downward direction, and the two supported sections are supported by the support member in such a manner that the two supported sections are angularly displaceable around the steering axis line relative to the support member.

The saddle-riding motor vehicle (1; 107; 207) comprises a rear driving wheel (5; 105; 205) and a front steered wheel (7; 107; 207). The front steered wheel (7; 107; 207X, 207Y) is connected to a rotatable arm (9; 109; 209X, 209Y) provided with a rotary motion about a steering axis (A-A). A wheel support (37; 137) is connected to the rotatable arm (9; 109; 209) with the interposition of a suspension (17; 117; 217X, 217Y) comprising a shock absorber (22; 122). The suspension (17; 117) comprises a Watt four-bar linkage.

The saddle-riding motor vehicle (1; 107; 207) comprises a rear driving wheel (5; 105; 205) and a front steered wheel (7; 107; 207). The front steered wheel (7; 107; 207X, 207Y) is connected to a rotatable arm (9; 109; 209X, 209Y) provided with a rotary motion about a steering axis (A-A). A wheel support (37; 137) is connected to the rotatable arm (9; 109; 209) with the interposition of a suspension (17; 117; 217X, 217Y) comprising a shock absorber (22; 122). The suspension (17; 117) comprises a Watt four-bar linkage.

A front fork for a motorcycle includes a bottom portion configured to engage an axle of a front wheel, the bottom portion having a center line at an angle relative to vertical. An angled middle portion extends from a top of the bottom portion at an angle relative to vertical that is larger than the bottom portion center line angle relative to vertical. A steering head attachment extends from a top of the angled middle portion.

An electric vehicle (e.g., a tricycle, or a car) includes a frame portion having a first side and a second side. A first rear wheel is disposed rearward relative to the frame portion at the first side. A second rear wheel is disposed rearward relative to the frame portion at the second side, the second rear wheel being spaced from the first rear wheel with a wheel base width therebetween (e.g., in a range from 260 mm to 900 mm). A first swing arm is pivotably coupled to the frame portion at the first side and operably coupled to the first rear wheel and extending between the frame portion and the first rear wheel. A second swing arm pivotably coupled to the frame portion at the second side and operably coupled to the second rear wheel and extending between the frame portion and the second rear wheel.

A steered wheel support structure of a vehicle, includes a knuckle member which supports an axle of a steered wheel and a support member which is coupled to a vehicle body and supports the knuckle member from a first side in a vehicle width direction in such a manner that the knuckle member is angularly displaceable around a steering axis line, the knuckle member includes: an axle support section which supports the axle; and two supported sections disposed on both sides in the upward and downward direction, of at least a portion of the axle support section, the two supported sections facing each other and being apart from each other in the upward and downward direction, and the two supported sections are supported by the support member in such a manner that the two supported sections are angularly displaceable around the steering axis line relative to the support member.