Abstract: One aspect of the present invention is comprised of a flexible rear frame member for a bicycle or velocipede. Other embodiments of the invention also include one or more assemblies, such as a rear wheel assembly, a seat assembly, a crank assembly, and strut members, which are adapted to be attached to the flexible rear frame member. A second aspect is a flexible front frame member, which may be pivotally attached to the flexible rear frame member. Other embodiments of this second aspect of the invention may also include one or more assemblies, such as a front wheel assembly and front strut members, which are adapted to be attached to the flexible front frame member. In some embodiments of the invention, the flexible rear frame member and the flexible front frame member, along with their respective assemblies, may together comprise a bicycle or velocipede.

Abstract: A device for telescopic fork legs, preferably for a motorcycle or bicycle. The device is a compact removable unit that comprises parallel medium flow passages that run between upper and lower sides of the piston. This unit that is simple to adapt to different front fork dimensions and to use as a kit for providing an existing front fork with parallel damping. Parallel damping achieves simple adaptation of the damping characteristics to different types of terrain.

Abstract: A bicycle fork assembly that includes a fork having a fork crown, a steerer tube, and a transition that couples the fork crown to the steerer tube to define a transition point between the transition and the steerer tube. The transition has an outer dimension that increases from the steerer tube toward the fork crown. A bearing is configured to rotatably support the fork within a head tube of a bicycle frame, and the bearing is located adjacent the transition point.

Abstract: A front fork has an air pump provided in one of a pair of front pipes at respective sides of the front fork. The air pump has an axle inserted into the front pipe. One end of the axle is provided with a piston, and the other end of the axle is connected to a handle. An air chamber is formed in the front pipe.

Abstract: A front suspension fork includes an adjustable device connected to at least one inner tube of the legs of the front fork and the adjustable device includes a rotatable cap which is fixed to a threaded rod which is moved up and down by rotating the cap. A pneumatic cylinder is connected to the lower end of the threaded rod and a connection part is connected to the lower end of the pneumatic cylinder and the connection part can be moved in the inner tube. The travel of the inner tube can be adjusted by adjusting the position of the threaded rod relative to the pneumatic cylinder.

Abstract: A bicycle wheel securing structure includes a bicycle fork, an adapter and a holding member. The bicycle fork has two axle support portions that are spaced apart for receiving a bicycle hub therebetween. The adapter is disposed in an adapter receiving bore in one of the axle support portions. The adapter includes a threaded axle mounting opening. The holding member is operatively coupled between the adapter and the one of the axle support portions with the adapter. The holding member prevents both rotational movement of the adapter with respect to the bicycle fork and axial movement of the adapter with respect to the bicycle fork along an axis of the axle mounting opening when the holding member is in a retaining position. The adapter is rotatable within the adapter receiving bore without moving axially with respect to the bicycle fork when the holding member is in a releasing position.

Abstract: A molded assembly for a unique combination of a steering tube and crown for use in a two vehicle fork such as a bicycle fork, wherein the steering tube transversely connects to the crown at the crown's center position. The crown is further connected to the fork leg housings. The steering tube is comprised of a bottom neck portion and a main round body portion, wherein the bottom neck is varies in shape from a round to non-round exterior which is used to eliminate rotation when the tube is molded into the crown. The interior of the crown at the location where it is molded into the steering tube is also formed in a matching non-round shape. The steering tube is chemically made of uncured resin blended with carbon fiber composites, which can be cured under heat after the assembly is molded.

Abstract: A handlebar-steered suspension fork that includes an outer tube and an inner tube reciprocally slidable within the outer tube. The outer tube includes at least one radial load region and at least one transition region. A fiber-reinforced material is wrapped about at least one of the outer tube radial load regions and not wrapped about at least one of the outer tube transitions regions.

Abstract: A front-wheel suspension for motorcycles, having a fork-type wheel carrier with a left fork arm and a right fork arm, a lower connection element mutually connecting the two fork arms and an upper connection element mutually connecting the two fork arms. The wheel carrier is swivelably linked to other components of the motorcycle by a lower and an upper longitudinal control link. Forward ends of the longitudinal control links are connected with the wheel carrier by way of an upper and lower swivel bearing respectively whose swivel axes extend essentially transversely with respect to the longitudinal direction of the motorcycle.

Abstract: A locking mechanism adapted for locking a bicycle fork has a locking sheath and an adjusting rod. The locking sheath is adapted to be positioned within the bicycle fork. The adjusting rod is adapted to slidably engage the locking sheath. The adjusting rod is adapted to rotate with respect to the locking sheath between a locked configuration and an unlocked configuration. A first interlocking element of the adjusting rod lockingly engages with a second interlocking element of the locking sheath in the locked configuration, and the first and second interlocking elements are disengaged from each other when the adjusting rod is rotated to the unlocked configuration.

Abstract: The present invention relates to a bicycle fork comprising an improved axle with non-round tapered ends affixed into dropouts with openings to match the axle ends through a taper-lock affixation for improving the torsional strength of the fork and facilitate ease of the axle installation. The improved axle consists of a first non-round end with interior female threads connecting an intermediate cylindrical portion which connects to a second non-round tapered end. An improved tapered split non-round nut having a cylindrical bolt possessing male threads lock the nut to the first end of the axle, wherein said bolt has an another preferred embodiment which connects a rotatable handle for ease of the axle installation.

Abstract: A shock absorbable handlebar riser assembly is provided for use with a recreational vehicle, such as a snowmobile or ATV. The shock absorbable handlebar riser assembly includes a pair of riser arms and a shock absorbable member. The riser arms are rotatably coupled between a steering shaft and handlebars. The shock absorbable member is fixedly coupled between the steering shaft and the handlebars.

Abstract: A bicycle suspension assembly may be in the form of a bicycle front suspension fork. The suspension fork may include a pair of telescoping fork legs. In one arrangement, a suspension spring and a damper are provided in only one of the pair of fork legs. The suspension spring assembly may include a negative spring. In one arrangement, the negative spring is a dual stage negative gas spring in which a negative spring gas chamber includes a first chamber section and a second chamber section. The first chamber section and the second chamber section are uncoupled in a first position of the suspension spring and the first chamber section and the second chamber section are coupled in a second position of the suspension spring.

Abstract: A ride control system for a motorcycle having an oil-containing fork having an air space. The control system includes a control unit having a reservoir and a valve in flow communication with the air space of the fork and the reservoir. The valve is configured to enable air to substantially freely pass from the air space of the fork to the reservoir during a relatively low speed impact experienced by the fork, and to inhibit air from passing from the fork to the reservoir during a relatively high speed impact.

Abstract: A suspension and steering system for the front wheel of a motorcycle. The system includes an upright extending along one side of the front wheel at a rake angle, to which the wheel is journalled by means of a cantilevered axle extending from one side of the lower end of the upright. The upright includes a lower section that resides within the inner diameter of the wheel rim and an arcuate upper section that extends upwardly and rearwardly around the wheel rim and tire. The upper end of the upright is connected to a telescoping, splined steering shaft that is journalled to an upper subframe and which transmits steering torque from a handlebar assembly through the upright to the front wheel. The upright is pivotably attached to upper and lower swing arms that extend forwardly from the body of the motorcycle. The lower swing arm extends around the side of the front wheel and functions to locate the lower section of the upright.

Abstract: A fork assembly for a bicycle that includes a fork crown with an integrally formed steer tube and a pair of fork receiving pockets. The crown and the steer tube are preferably forged of an aluminum material. Each of a pair of fork blades includes a crown end that has a contour that substantially matches a contour of a respective receiving pocket such that each of the pair of fork blades can be bonded to the crown thereby providing a lightweight and robust fork, fork crown, and steer tube assembly.

Abstract: A front bicycle suspension assembly having an inertia valve is described. The front bicycle suspension assembly may include at least upper and lower telescoping tubes defining an interior volume in which a damping tube containing an inertia valve is positioned. During compression, a piston rod of the bicycle suspension assembly occupies a successively greater portion of the damping tube.

Abstract: A motorcycle springer type suspension has an upper fork tree and a stanchion tube having an upper end that fits within the upper fork tree. The upper end of the stanchion tube is hidden within the upper fork tree. A retainer clamp has a push rod tube having an upper end that fits within the retainer clamp. The upper end of the push rod tube is hidden within the retainer clamp.

Abstract: The present invention relates to an vertical-tube-fixing-base structure of the front fork tube of the bike and aimed at providing an direct piercing-through hole of said vertical-tube-fixing-base, which is designed to be mounted on the carbon-fiber-made front fork tube; then clip the horizontally-arranged handle via the fillister and the fixing-base-cover on the other end to integrate; wherein, the middle part of the direct piercing-through hole is hollow-shaped to form two restraining-rings being respectively set at the upper and lower position around; moreover, one open-cutting trench intercommunicating with the direct piercing-through hole is respectively set at the two restraining-rings of the upper and lower position; moreover, one flat-round piercing-through hole and one inner threaded hole are set both sides of the open-cutting trench; the two open-cutting trenches are separated at two positions with different axes. The purpose of avoiding cracking the front fork tube can be reached.

Abstract: A unitary vehicular front end is provided comprising a left and right side, each having a handle section with a fork segment thereof, the left and right sides being bridged together via a connecting member having a central bar for receiving the frame of a vehicle, such as a motorcycle or other two or three-wheeled vehicle. A method of securing the unitary vehicular front end to the frame of a vehicle is also provided.

Abstract: A motorcycle fork rake extension kit provides an increased fork rake without welding and maintains a favorable trail. The extension kit includes an upper adapter block fixedly attached to an upper end of a steering head of a motorcycle frame and a lower adapter block fixedly attached to a lower end of the steering head of the motorcycle frame. Triple trees are rotatably attached to triple tree ends of the adapter blocks through steering head bearings. The triple tree ends of the adapter blocks are spaced away from the frame, the lower adapter block having a greater spacing to increase fork rake. The lower triple tree may further space the fork tubes forward to further increase fork rake. In a preferred embodiment, approximately 45 degrees of rake is provided with favorable trail.

Abstract: In a front fork apparatus of a two-wheeled vehicle or the like in which left and right front fork constituted by vehicle body side tubes and tire wheel side tubes which are slidably fitted to each other, are provided in both left and right sides of a front wheel, and a brake apparatus is attached only to the front fork in one side of the left and right sides, a thickness of the tire wheel side tube of the front fork in the one side to which the brake apparatus is attached, is made larger than a thickness of the tire wheel side tube of the front fork in the other side.

Abstract: A steerable leveraged suspension suitable for a bicycle or electric Bicycle of motorized wheel hub design. Comprising of a vertical fork, which attaches to a bicycle frame front neck tube. The lower portion of said vertical fork is curved at its bottom to the rear of the frame neck head tube centerline, so as to improve steering trail geometry. The bottom of the curved fork is a pivot point to which pivot arms are attached. To the pivot arms the front wheel is attached forward of the pivot points by means of slots to which the front wheel Axel shaft fits into. Also two leveraging pivot arm extensions are attached. The leveraging arms provide a means of suspension leverage and a mounting point for brakes. For the purpose of suspension are rubber cord (bungee cord) and a compression damping spring of gas charge type.

Abstract: A motorcycle with reduced fatigue due to vibrations in travel. A handle bracket is connected to an upper end of a steering shaft through a damper member, and left and right handle bodies are fixed to left and right ends of the handle bracket.

Abstract: A handle bar mount for small vehicles and of the type having a pivoting handlebar cradle (24) attached to a top member (50) that is attached to a vehicle (20). A series of absorbers (38) is retained by absorber posts (42) using two independent pivot locations. The location of the pivots is ideally suited rearward and lower than the handlebar clamp. This provides a simple and cost effective dampening of vibration from the ground, acceleration, and breaking to the handlebars and the rider. The independent nature of the two pivoting locations allows a rider to lift on one end of the handlebars and push down on the other end of the handlebar and achieve different cushioning and control at each end of the handlebars.

Abstract: A lower fork tube cover is comprised of a first cover member and a second cover member that is connectable to the first cover member. A mounting bracket attaches to an inner surface of the first cover member to mount the first cover member to a front brake caliper mount connected to the lower fork tube. An upper portion of the first cover member is configured to cover a first portion of the lower fork tube and the front brake caliper mount. A lower portion of the first cover member substantially surrounds a rear half of a second portion of the lower fork tube. A base wall extends from the lower portion. The second cover member is configured to substantially surround a front half of the lower fork tube. The second cover member includes a base wall at a lower end that overlaps with and is connectable to the base wall of the first cover member to cover a lower end of the lower fork tube. A front edge of the second cover member overlaps and is connectable to a front edge portion of the first cover member.

Abstract: A gas spring suspension system that maximizes the travel of the suspension system. The suspension system includes a first tube and a second tube slidable within the first tube. A piston assembly is slidably mounted in the second tube for changing the pressure in the second tube. A floating piston is slidably mounted in the second tube. A first gas chamber biases the first and second tubes apart from each other while a second gas chamber biases the first and second tubes toward each other. A third gas chamber exists between the floating piston and an end of the first tube. The floating piston has a configuration such that when a pressure in the third gas chamber is greater than a pressure in the second gas chamber, the floating piston displaces within the second tube to decrease the pressure in the third gas chamber.

Abstract: A bicycle headset structure is provided to aid in the mounting of a steerer tube of a front fork to a head tube of a bicycle frame. The bicycle headset structure is configured such that a device can be mounted in the steerer tube and the headset is appropriately loaded.

Abstract: The present invention relates to a bicycle fork comprising an improved axle with non-round tapered ends affixed into dropouts with openings to match the axle ends through a taper-lock affixation for improving the torsional strength of the fork and facilitate ease of the axle installation. The improved axle consists of a first non-round end with interior female threads connecting an intermediate cylindrical portion which connects to a second non-round tapered end. An improved tapered split non-round nut having a cylindrical bolt possessing male threads lock the nut to the first end of the axle, wherein said bolt has an another preferred embodiment which connects a rotatable handle for ease of the axle installation.

Abstract: A hitch assembly comprises a first coupling element and a second coupling element suited to be latched to the first coupling element. A rod member has a first end connected to the first coupling element. An actuator has a movable output member that can move between a retracted and an extended position.

Abstract: A suspension system for the front wheel of single wheeled vehicles having a single front wheel, such as bicycles, tricycles and motorcycles. The suspension system consists of a frame with a variable arrangement of the steering points using at least one swingable arm, multiple fork joints at least one of which is designed as a two-part fork joint that provides for variable distances between the steering axis, and a telescopic fork connected to the front wheel and which has at least three parts so that the front wheel is guided through the entire system whether partly or fully sprung.

Abstract: A suspension front fork includes a lower tube with a closed bottom and an upper tube is movably inserted in the lower tube. Hydraulic oil is filled in the lower tube and has an oil level in the upper tube. A damper assembly is fixedly received in the upper tube and includes a spring and a piston which is biased by the spring and seals a side hole. A control assembly is movably received in the upper tube and includes a damper member which is connected to the adjustment assembly. An adjustment rod extends from the damper member and a lower end of the adjustment rod is movably inserted through the outlet of the damper assembly. A gap is defined between an inner periphery of the outlet and the lower end of the adjustment rod so that a size of the gap can be adjustable by moving the adjustment rod relative to the inner periphery of the outlet to adjust volume of hydraulic oil entering the damper member.

Abstract: A fork tree upper clamp has a pair of leg holders, a frame holder and a pair of brake line channels formed in the lower surface. The leg holder can have a shelf for abutting a top end of a hollow fork leg, so that the shelf defines a well having a connecting aperture allowing the brake line to pass from the brake line channel to the well. The clamp can be of a generally planar configuration made of a thick slab of solid aluminum that is CNC milled and then finished. Each brake line channel can terminate at a terminating recess.

Abstract: In an inverted type front fork in a two-wheeled motor vehicle or the like, a stopper plate having a through hole formed in a center portion is fitted to an inner periphery of an upper end portion of an inner tube. A rod attached to an outer tube is inserted into the inner tube via the through hole of the stopper plate. A spring seat supporting an upper end portion of a suspension spring is provided in a end portion of the rod. A rebound spring is interposed between the spring seat and the stopper plate. A plurality of connecting holes connecting upper and lower air chambers locating above and below the stopper plate are formed in an outer peripheral portion of the stopper plate, and a flow path connecting the upper and lower air chambers locating above and below the stopper plate is formed within the rod.

Abstract: The present invention includes a front fork assembly for a cycle. The assembly includes a steering tube, front furcations fixed to the steering tube, and a drop-out bracket device fixed to a distal end of each front furcation. The drop-out bracket device has a tubular member having multiple drop-out brackets directed towards a front side of the cycle, a back side of the cycle, or both. Each drop-out bracket has a substantially planar fastening member and an opening.

Abstract: A suspension system for use with a motorcycle includes a device for producing a supply of pressurized air. The suspension system is operably disposed between a frame member and a wheel frame member of the motorcycle. The suspension system comprises at least one double-acting pneumatic cylinder.

Abstract: A locking device of a front fork with shock absorber and releasing pressure structure therewith, when users came across accidented terrain while riding and the buffering function of the front fork is turned off, the counterforce is transmitted to the front fork and exceeded the threshold value of the hydraulic oil, so that the damper and the plug piece move upwardly to compress the elastic member and the through holes of the damper are opened to make the hydraulic oil of the lower fork tube flow to the upper fork tube, thus the upper and lower fork tubes can be moved oppositely. When the counterforce is less than the minimum force of compressing the elastic member, the elastic member is pressed against the plug piece, and the damper can be repositioned and the through holes will be closed again.

Abstract: A front wheel supporting structure for a motorcycle (1) includes a pair of front forks (10, 20) provided on the right and left sides of a front wheel (2) for supporting the front wheel (2) to a frame (5) of the motorcycle (1). The front forks (10, 20) includes a first front fork (20) which generates a damping force for damping a vibration of the front wheel (2) depending on an amplitude of the vibration, and a second front fork (10) which generates a damping force for damping a vibration of the front wheel not depending on the amplitude of the vibration. By thus combining the front forks (10, 20) having different damping force characteristics, the front wheel supporting structure can absorb vibrations of various velocities and amplitudes.

Abstract: A bicycle suspension system including a travel adjustment apparatus. The bicycle suspension system includes a piston tube and a piston assembly slidably disposed in the piston tube forming a shock-absorbing mechanism. The piston assembly is in contact with the piston tube. The travel adjustment apparatus includes first and second fluid chambers, a fluid valve mechanism for controlling fluid flow between the first and second fluid chambers, and an actuating assembly operatively connected to the fluid valve mechanism operable between at least two rider-selectable travel settings to operate the fluid valve mechanism between at least two valve settings corresponding to the rider-selectable travel settings.

Abstract: A suspension system for the front wheel of single wheeled vehicles having a single front wheel, such as bicycles, tricycles and motorcycles. The suspension system consists of a frame with a variable arrangement of the steering points using at least one swingable arm, multiple fork joints at least one of which is designed as a two-part fork joint that provides for variable distances between the steering axis, and a telescopic fork connected to the front wheel and which has at least three parts so that the front wheel is guided through the entire system whether partly or fully sprung.

Abstract: A hydraulic front fork includes a fixed locking mechanism mounted in the upper fork tube, and a first adjustment mechanism mounted in the top end of the upper fork tube adjustable to control the flowing path of the hydraulic fluid through the locking mechanism such that the bicycle is suitable for running on slopes and smooth road surfaces efficiently when the hydraulic fluid is locked out and prohibited from passing through the locking mechanism, and the hydraulic front fork can absorb shocks when the hydraulic fluid is allowed to pass through the locking mechanism.

Abstract: A bicycle fork assembly includes a steering tube configured and arranged to be rotatably mounted to a front part of a frame of a bicycle. A fork crown is secured to a lower end of the steering tube and includes first and second arms that extend laterally in opposite directions from the center portion. First and second suspension systems are secured to the arms of the fork crown and a lighting system is integrated into at least one of the first and second suspension systems. The lighting system preferably includes two lights that are configured such that the respective light beams overlap to provide a single operating beam to illuminate a travel path.

Abstract: A motorcycle has a structure in which the head pipe and the front fork are offset, the offset of the front fork in the rear direction being greater than that of the head pipe. The front wheel diameter is greater than ½ of the wheelbase between the front and rear wheels, and the caster angle of the head pipe is in the range from 20° to 25°.

Abstract: A front fork of a bicycle, which has damping function, has a lower fork having a closed bottom. An upper fork tube is inserted into the lower fork for reciprocation relative to the lower fork, which has a nozzle at a top thereof. Oil is received in a space between the lower fork and the upper fork tube. An air chamber is formed in a space between a surface of the oil and the nozzle, which a gas is issued therein and a pressure of the gas is greater than an atmospheric pressure, and a damping device, which is mounted at a bottom of the upper fork tube and under the surface of the oil, has multiple, variable oil flow paths through which oil passes as the upper and lower fork member reciprocate to provide various damping characteristics dependent on the relative speed or impact the fork members experience with respect to each other.

Abstract: A cycle that has two fixed frame arms extending down on each side of the head tube axis, and a steering arm rotatably mounted in the head tube extends down between the frame arms and has a laterally off-set lower portion. A mounting member is fixed to the lower end of the steering arm and has a hollow cylindrical wheel support section which carries the inner portion of a bearing or bearings for the front wheel, allowing this wheel to rotate while being steerable by the steering arm. A fixed pedal axle extends freely through the hollow wheel support section and is rotatably supported by lower ends of the frame arms, this axle being connected by drive means to one of the cycle's front or rear wheels. Parts of the mounting member have an enlarged interior space relative to that in the wheel support section to accommodate steering movement of the mounting means relative to the pedal axle.

Abstract: A heavy duty, low rise motorcycle includes a dual beam chassis having a pair of parallel, hollow fuel containing side members extending front to back along opposite sides of the motorcycle. The dual beam chassis also has front and rear hollow frame members joining front and rear portions of the side members, forming a low box section frame parallel to a road surface. A engine is mounted above and to the dual beam chassis between front and rear portions of the side frame members. An oil pan is attached below the engine block. The rear wheel receives driving power from the engine. The motorcycle is steered by a handle bar linkage controlling a front wheel mounted to the motorcycle. The steering linkage may be located inside a tubular front fender housing. Telescopic kickstand actuators may support the motorcycle when not in motion.

Abstract: In a front fork of a motorcycle or other motor vehicle, an oil chamber is provided in an outer side of a hollow pipe is vertically divided into upper and lower sides by a piston arranged in a leading end portion of the vehicle body side tube. An oil reservoir chamber communicated with the oil chamber is provided in an inner side of the hollow pipe. A partition member dividing the oil reservoir chamber into upper and lower sides is provided in an upper portion of the hollow pipe, and a compression side damping valve is provided in a flow path formed in the partition wall member. A seal member slidably contacted with an inner periphery of the vehicle body side tube is provided in an outer periphery of the vehicle body side tube is provided in an outer periphery of the partition wall member.

Abstract: An apparatus and method of securing a bicycle handlebar stem to the front wheel fork steerer tube with handlebar height adjustability and rotation of the handlebar and stem for easy storage. A steering assembly is provided where the handlebar stem is moveably fastened to the front fork steerer tube using a manually operated primary locking device and requiring a secondary action to allow for movement in the form of either height adjustment, or rotation, or both. The connection between the handlebar stem and the front fork steerer tube can be on the interior or the exterior of the front fork steerer tube. With the interior connection, the steerer tube can be elongated to extend above the top of the headset bearings where it is fitted with a collar for clamping onto the internally mounted stem. The handlebar stem and fork steerer tube are fitted with corresponding octagonal or other cross sectional shapes, or a safety tracking system.

Abstract: A fiber reinforced plastic bicycle fork uses a reinforced crown steer tube junction extending the steer tube through a tapered socket to the brake bolt such that the metal steer tube coacts with the fiber reinforced plastic fork to preserve structural integrity in the event of application of high stress to the fork.

Abstract: A stem front cap for the stem of a bicycle, including: a body having a mounting part that is adapted and structured for receiving and securing a handlebar in conjunction with a stem. A receiving section at the body of the stem front cap is provided for receiving and securing at least one aero support to enable the user to assume an aerodynamic operating posture on a bicycle.