A straddle-type vehicle comprises a vehicle body frame; an axle which is rotatable integrally with a wheel; a swing arm having a front end portion pivotably mounted to the vehicle body frame, and a rear end portion to which the axle is rotatably mounted; a first coupling member to which rotational driving power from a driving source is transmitted is coaxially, rotatably mounted to the axle via a bearing; and a second coupling member coaxial with the axle and including a joining portion non-rotatably joined to the axle, a fitting portion fitted to the first coupling member via a buffering member, and a coupling portion for coupling the joining portion to the fitting portion, wherein the coupling portion is placed axially outward relative to the first coupling member, and the joining portion extends from axially outside between the first coupling member and the axle.

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.

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.

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.

In an aspect, a compactable bicycle is provided, comprising a base frame portion and a steering structure. The base frame portion includes a seat tube and a head tube, a connecting tube connecting them and a rear frame portion that has a rear wheel mounted thereto. The steering structure includes a steering member rotatably mounted in the head tube, a handlebar, and a front wheel support having a front wheel connected thereto. The steering member includes first and second portions that are removably connectable together. The head tube includes first and second portions that hold the first and second steering member portions respectively. The second head tube portion is movable relative between a first position in which the first steering member portion is superjacent to the second steering member portion, and a second, stowage position.

A folding vehicle is adjustable between an unfolded position and a folded position. In the unfolded position, the wheels of the vehicle are in a leading and trailing relationship. In the folded position, the components of the folding vehicle have a minimal footprint allowing for compact storage. In the folded position, the wheels may be in a side-by-side relationship with the majority of the vehicle components positioned between the wheels.

The flip-pivot bicycle is a collapsible bicycle, that can be folded by a new method, and belongs into the class of the bicycles foldable about two or more axes. The flip-pivot bicycle consists of a driving-frame-segment (1) comprising the driving-wheel (7), a steering-frame-segment (3), comprising the steering-wheel (6), and a central-frame-segment (2), which connects them. The central-frame-segment (2) and the driving-frame-segment (1) is connected by and can pivot above a pivot-axis (4), which pivot-axis (4) is perpendicular to the plane of the parallelly positioned wheels (6, 7), or forms an angle of maximum 45 degree with this perpendicular. The central-frame-segment (2) and the steering-frame-segment (3) is connected and can pivot by a flip-axis (5), which flip-axis (5) is in the plane of the parallelly positioned wheels (6, 7), or is parallel to this plane, or forms an angle of maximum 45 degree with this plane. The function of the flip-axis (5) is to relocate the wheel distant to the pivot-axis (4) as close (or approximately as close) to the pivot-axis (4) as the other wheel is. Thereby flipping the driving-frame-segment (1) on the central-frame-segment (2) by the flip-axis (5), and offset the original planes of the wheels (6, 7) in the meantime, the two wheels (6, 7) can be folded next to each-other. Beyond the above, the flip-pivot bicycle can be equipped with an extra frame-brace; with central-suspension; with crank-anus with releasable fixing which can be re-fixed also in less than 180 degree to each-other, and/or the with pedals inward; with stem that can be slided into one of the forks or next to it; and with seatpost miming out of the plane of the driving wheel.

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 bush 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 bush 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 suspension assembly for a motorcycle having a steering knuckle, a steering mount, an upper control arm, and a lower control arm. The steering knuckle defines an axle structurally configured to receive a wheel. The steering mount is coupled to the steering knuckle and has a first end and a second end, an offset portion of the first end defined as being offset relative to the steering knuckle. A steering arm is attachable to the first end of the steering mount. The upper and lower control arms are structurally configured for pivotable coupling to a frame, and pivotable coupled to the steering mount. The axle is positioned between the frame and the steering knuckle and positioned so as to define a rake and a trail, wherein the rake is substantially vertical and the trail is positive. A motorcycle is further disclosed.

The invention is directed to an ABS unit attachment structure including: a floating bracket which is fixed to a vehicle body frame via a vibration absorbing member; an ABS unit attached to a first attachment surface of the floating bracket; and a weight attached to a second attachment surface of the floating bracket, and a motorcycle including the ABS unit attachment structure.