A rear fender supporting structure of a saddle-type vehicle includes a rear wheel supported through a swing arm to a body frame, and a rear fender covering a rear upper part of the rear wheel. The rear fender is supported to the swing arm on one side in a left-right direction. The swing arm includes an arm portion extending in a front-rear direction, a through hole provided at a rear end of the arm portion to support an axle, and a split-clamp portion supporting the axle by fastening an upper circular-arc and a lower circular-arc surrounding the through hole with a fastening member. The rear fender is mounted on a front-side fixing portion positioned on a front side of the upper circular-arc and on an upper surface of the arm portion, and on a rear-side fixing portion positioned on a rear side of the lower circular-arc.

In a support structure of a drive shaft in which a power transmission mechanism transmitting the power of a power source and a driving wheel are fixed to a drive shaft rotatably supported by a support portion provided in a vehicle, a female screw portion is formed in the inner peripheral surface of a hollow portion formed at an end portion of the drive shaft. The power transmission mechanism is fixed to the drive shaft by fastening a bolt screwed with the female screw portion. A step portion is provided between a small-diameter portion and a large-diameter portion formed on the outer peripheral surface of the drive shaft. The position in the axial direction of the power transmission mechanism fixed to the small-diameter portion side is regulated by the step portion.

A pivot assembly for a cycle linkage suspension is provided that includes first and second members and a pivot. The first and second members include lateral openings extending therethrough and the pivot includes a rod portion that is configured to be disposed within the lateral openings to pivotably couple the first and second members together. The rod portion further includes an opening that extends through an intermediate portion thereof. The pivot assembly can further include a pin configured to be removably inserted at least partially into the opening in the rod portion to thereby restrict lateral movement of the rod portion within the first and second members.

The present invention discloses an installation structure for a wheel axle assembly and a wheel fork, a frame and a vehicle. The wheel axle assembly includes a wheel axle; a first bearing, a bushing and a second wheel axle sleeved on the wheel axle successively; and a hub arranged on the outer rings of the first bearing and the second bearing, wherein the bushing is used for spacing apart the first bearing and the second bearing axially a predetermined distance, and the hub is of a sleeve shape and an end thereof arranged on the first bearing expands the outer diameter to form a flange portion for fixing and installing a wheel; and the wheel fork includes a wheel fork body and a frame connection portion formed on an end of the wheel fork body and forming an L shape with the wheel fork body for connecting to a frame, and the wheel axle is fixed on the other end of the wheel fork body in a direction perpendicular to the rim center plane of the wheel.

A front fork (4) of a motor vehicle, comprising a first lining (24), a first stem (28) and a second lining (48), wherein the first stem (28) slides axially inside the first lining (24) along a first sliding axis, the first stem (28) and the first lining (24) are associated one to one hub (32) for rotatably housing the rotation pin of an axle journal of a wheel and the other to a steering column (40) by means of a bracket (44), or vice versa, the second lining (48) is integral in rotation with the first lining (24), is arranged so that, with respect to a projection plane perpendicular to the first sliding axis, the projection area of the first lining (24) is eccentrically contained in the projection area of the second lining (48), and is integrally attached to said hub (32) or to said steering column (40).

A tricycle has a forward oriented fork member (20) supported for rotation about a steering axis (14) of the tricycle, a handle bar (50) mounted to the fork member, a cargo unit (24) supported by the fork member, and a pair of transversally spaced linkages (30), wherein each linkage at a proximal end is linked to the fork member and at a distal end supports a respective front wheel (16) of the tricycle. The cargo unit and the linkages are shiftable between respective forward and backward end positions to thereby transform the tricycle to a wheel cart and vice versa.

The rear of a motorcycle with cardan suspension comprising a rear frame, a fork, hinged to said frame about a hinging axis, the fork rotatably supporting the rotation pin of a rear wheel of the motorcycle around a rotation axis, the fork supporting a cardan-shaft transmission comprising at least one first transmission shaft, suitable to be connected to a power take-off of an associable engine, at least one final shaft provided with a pinion rotatably connected to said rear wheel, wherein between the first transmission shaft and the final shape is interposed a first cardan joint, a floating arm that supports said pinion of the final shaft, the arm being floating around said rotation axis of the rear wheel. The floating arm comprises a cup portion arranged coaxially to the rotation pin and having at least an inner end that houses and supports said pinion.

A motorcycle transmission includes a swingarm which extends from one hinging end to a motorcycle chassis, defining an oscillation axis, at one connection end to a wheel, a homokinetic joint arranged on the side of the hinging end, and a geared coupling positioned on the side of the connection end. The homokinetic joint kinematically reciprocally connects a first end of an input shaft, connected to a power take-off, and a second end of an output shaft mechanically connected to the geared coupling. The geared coupling transmits motion to the wheel. The homokinetic joint performs an instantaneously constant transmission ratio between the first and the second end. The homokinetic joint is offset to the hinging end of the swingarm, in a vertical direction perpendicular to the support surface of the wheel and permits oscillation of the output shaft between a stroke start and a stroke end, parallel to the oscillation axis.

A rear wheel suspension adjusting arrangement for use in a vehicle includes a configuration adjusting arrangement and an activating arrangement. The vehicle includes a frame having a front and a back, a suspended rear drive wheel that supports the frame, and a suspension system for connecting the rear drive wheel to the frame. The configuration adjusting arrangement is capable of changing the positioning of the suspension system relative to the frame such that the suspension system may be moved into an uphill configuration when the vehicle is traveling uphill and such that the suspension system may be moved into a downhill configuration when the vehicle is traveling downhill. The activating arrangement activates the changing of the configuration adjusting arrangement to cause the configuration adjusting arrangement to change the positioning of the suspension system relative to the frame while the vehicle is being used.

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.