Abstract: The bike stand is free-standing and separate from the bike. The stand includes a horizontal base or bottom portion, an about vertical middle portion, preferably conected to the front end of the bottom portion and an upper bike supporting portion connected to the middle portion. The upper portion includes a pair of laterally spaced rearwardly extending L-shaped arms connected at their upper ends by a cross-bar. The lower rungs of the arms support the bicycle or motorbike, for example, the tubular bottom portion of a motorbike frame.

Abstract: The present invention solves the problems of the electrical surge and reduced reliability related to the shock loading experienced by previous two wheeled vehicle stands when the stand member contacts the ground during the time it is being driven by the stand motor to a position for supporting the two wheeled vehicle. This is achieved by having a drive mechanism consisting of a plurality of reduction gears to transmit the drive from the stand motor to the stand member, thereby reducing the torque loading on the stand motor, and by mounting the drive mechanism so that it can move relative to the body of the two wheeled vehicle when the stand member first contacts the ground, and restricting this movement with a buffer device which absorbs the shock loading.

Abstract: A stand for a bicycle that supports it at an angle, the stand comprising a single elongated member which attaches to the bicycle at two locations by means of slotted members which encircle the chain stays and crank spindle to support the bicycle. The opposite end of the elongated member serves to contact the ground, having a flat, angled surface adapted for this purpose. The stand is readily installed and removed, and is stored in a second location on the bicycle when the bicycle is in use.

Abstract: A self-detachable bicycle auxiliary wheel bracket which can be connected to the free-wheel axle of a bicycle without removing the nut which locks up the free-wheel axle, and comprising an integral recess at the inner top side for receiving therein the nut which locks the free-wheel axle, which recess has a through-hole in the center for insertion therethrough of the bicycle free-wheel axle, and a pair of projecting rods disposed at lateral sides of the recess for inserting into the front notch of the rear fork of the bicycle to stabilize the connection of the bicycle auxiliary wheel bracket to the free-wheel axle.

Abstract: It is common for bicycle riders to remove the bicycle front wheel and secure it with a lock and chain to the bicycle back wheel and frame when parking a bicycle. In such a case, the front fork of the bicycle then engages the ground. This often causes damage to the front fork or to the drop out slots in the front fork. To this end, a bicycle fork protector has been devised, the fork protector secured in the drop out slots of the blades of the front fork, the fork protector adapted to be interposed between the front fork and the ground. The fork protector consists of a generally elongated flat plate made of durable material with two pairs of opposite sides, one elongated side being a rounded side, the rounded side having a dense shock absorbing material strip adhesively attached thereto adapted to engage the ground. The opposite straight side is wedged into and frictionally held by the drop out slots of the bicycle front fork.

Abstract: A handle device for bicycles provides an adjustable rider training support point for training helpers. A handle and extension member is pivotally mounted to the rear axle and the pivoting motion conveniently places the handle proximate to the rider, avoiding the extraneous moments and forces experienced by present day fixed handles. The handle is allowed to pivot in the plane of wheel rotation, but the device is fixed in position when the optimum position is achieved. An alternate configuration limits pivoting motion to within a specific range. This allows convenient pushing, pulling and sideways support when the bicycle is at rest or being ridden. The handle is also mounted on telescoping members to conveniently adjust the handle height. The range of motion is also adjustable by a telescoping frame support or a fixture having tapered stops attached to the frame of the bicycle.

Abstract: A switch for detecting various angular positions of a motorcycle side stand bar is a rotary switch so arranged that a movable contact therein is moved with respect to stationary contacts in response to movement of the side stand bar whereby the position of the side stand bar can be detected while the switch can be advantageously positioned to permit greater freedom of switch design and installation and protection of the side stand pivot member. Various switch configurations and modes of attachment are disclosed, as well as various modes of electrical application of the switch in the operation of the vehicle.

Abstract: Disclosed herein is a bicycle stand assembly and storage structure. The bicycle stand assembly inludes an elongated suport member for supporting a bicycle in an upright position and a housing adapted for removable connection to the frame of the bicycle. The housing includes a first housing member and a second housing member. Each housing member had an inside surface for intimate contact with the bicycle frame. Fastening members connect the first and second housing members with the frame between the members. The first member additionally includes cylindrical projections for removably connecting the support member. The storage structure includes a first mounting member having an inside surface for mating connection with the bicycle frame and a second mounting member for connecting the first mounting member to the bicycle frame. The storage structure further includes a clip member adapted which is removably attached to the first mounting member.

Abstract: An improved vehicle kickstand foot comprising a clamp member for securing said kickstand foot to said kickstand, and an elongated, generally U-shaped member pivotally secured to said clamp member and movable between an extended position projecting laterally to said kickstand to distribute the weight of said vehicle on a soft surface and a retracted position lying substantially parallel to said kickstand to minimize wind resistance and snagging when the vehicle is in motion.

Abstract: A support pad is provided for use as a bearing between a motorcycle kickstand and sand or other soft terrain. A collapsible handle is provided which is pivoted to the pad and may be extended so that the pad may be located while an operator is astride the motorcycle. The handle may also be collapsed and pivoted against the pad to provide a compact device for storage.

Abstract: A stabilizer for all terrain vehicles which has a mounting bracket (20) attached to the undercarriage to which an outrigger spring (22) or (22a) is mounted at a forward angle. A rear spring (30) extends aft of the vehicle in similar manner. Stabilizer arms (26) and (32) are juxtapositionly attached to the springs and act as snubbers, allowing limited deflection of the springs. A folded runner section 23 or a pair of outrigger feet (28), having an upwardly tapering end are integral or attached to the outrigger springs and a cross bar (34) is fastened to the rear spring providing an extended footprint capable of holding the weight of the vehicle. The spring or springs are so located as to change the center of gravity preventing the overturning of the vehicle while yieldingly absorbing the load if an obstruction is encountered.

Abstract: A training wheel assembly for a bicycle including brackets for attachment to the body of the bicycle and a pair of auxiliary wheels supported by the brackets for engagement of the ground distally of and to opposite sides of the bicycle utilizes a link member connected between each auxiliary wheel and a corresponding bracket and cables operatively attached between the front wheel of the bicycle and the link member. Each auxiliary wheel is journaled at its center to a link member for rotation relative thereto, and each link member is connected to the corresponding bracket for pivotal movement relative thereto so that when the brackets are operatively attached to the bicycle body, the center of the auxiliary wheels are pivotally movable relative to and about the bracket between a raised condition and a lowered condition.

Abstract: Bicycle support apparatus including a front wheel support assembly and a rear wheel support assembly interconnected by strut structure. The rear wheel support assembly includes front and rear rollers that cradle the rear wheel, and intermediate rollers providing support for the rear wheel. The front wheel support assembly includes spaced rollers that cradle the front wheel.

Abstract: A stabilizing wheel assembly has a support frame construction releasably securable to a bicycle and a stabilizing wheel secured to the support frame construction. The latter includes a substantially planar main plate attachable to the bicycle seat stay and the chain stay; a support bar affixed at one of its ends to the main plate and extending generally perpendicularly therefrom; and a fork unit having fork blades straddling the stabilizing wheel and being held on the support bar for a swinging motion in a plane parellel to the main plate. There is further provided an abutting mechansim carried by the support bar and arranged in a path of the swinging motion of one of the fork blades.

Abstract: This invention relates to a stand for a motorcycle. The stand comprises an elongate transverse frame member, which has a non-circular cross-section, a first pair of similar elongate leg members, and a second pair of similar elongate leg members. Each leg member of both pairs has a non-circular transverse socket at one end. The shape of the socket corresponds to the cross-sectional shape of the transverse frame member. The leg members are slid on the frame member and secured with the members of the first pair in a first plane at an acute or right angle to the members of the second pair in a second plane. A transverse member is mounted on each leg of the first pair for engagement with the undercarriage of the motorcycle. Alternatively, a channel member, which has a hole cut through each of its sides, the holes in register with one another, is slipped about each front fork of the motorcycle between the bottom crown and fork slider.

Abstract: An invention which prevents the overturning of ALL Terrain Vehicles (ATV's ) when such vehicles are driven up an incline of sufficient grade so as to cause the lighter-weighted front end of the vehicle to rear backwards causing a backward overturn. This invention, which consists of a tire attached to a bracketing system, which in turn is mounted to the rear of an ATV, provides a stabilizing support to the rear of the vehicle in incidences of imminent overturn. The device is easily attached to most ATV's of different manufacture, and do not interfere with the operation of the vehicle when driven on flat or slightly hilly surfaces.

Abstract: An auxiliary pad for attachment to the foot portion of a bicycle kickstand is molded in two pieces of polypropylene. A clamp section has a pair of opposing semicylindrical clamp elements and can be folded to clamp around the downwardly extending rod of the kickstand. A pair of semicylindrical shims is attached to the clamp elements and can be used if required. A pad section is provided having a ribbed underside and a pair of brackets to accept a pair of clamp legs serving to hold the pad section against the foot portion of the kickstand.

Abstract: A small size bicycle for use by young children having front wheel pedal drive and adapted to have an attached training wheel assembly.

Abstract: Mechanisms for mounting a main stand on a motorcycle are disclosed. The linkage between the front portion of the motorcycle power unit and the motorcycle body frame is used to mount the main stand. One mechanism employs a link connected to a bracket on the body frame and to bosses extending from the power unit. Another mechanism uses two links connected to each other and a bracket and bosses. A main stand is mounted to the rear end portion of the linkage mechanism.

Abstract: A bicycle suitable for use when performing free-style tricks in which the bicycle is turned almost completely sideways is provided. The handles and the pedals of the bicycle include a rotatable ball bearing which reduces abrasion and increases smoothness when one of the handles and/or pedals contacts the ground.

Abstract: On a motorcycle stand there is mounted an electric motor, actuated by a pushbutton or switch, which motor, through a reducer unit, rotates a pinion; this latter meshes with a sector gear of the stand, whose center coincides with the hinging axis on which the stand is hinged on the motorcycle; actuation of the motor produces the sliding of the pinion on the sector gear and, accordingly, the rotation of the stand between the two conventional end positions called operative and rest position, respectively.

Abstract: A side stand of a motorcycle is disclosed, which is equipped with an auxiliary wheel at an end portion thereof which is selectively locked by an operation of a clutch lever of the motorcycle.

Abstract: A motorcycle side-stand accessory (10) enhances the effectiveness of a motorcycle side-stand (28) by allowing an operator to leave a motorcycle supported by the side stand on relatively soft terrain (24). The accessory comprises a thin, flat, steel, plate (12) to be placed under the side stand and a relatively long steel chain (14) attached to the metallic plate having an aluminum spring clasp (16) on its end for allowing the chain to be attached to a motorcycle foot peg (38), with the chain being relatively taut between the plate and the foot peg.

Abstract: A training wheel assembly for children's bicycles includes an elongated bracket having a lower portion adapted to adjustably mount a training wheel, and an upper portion formed with multiple, vertically spaced hexagon-shaped apertures each adapted to receive the rear wheel axle of the bicycle. A brace arm is provided to assist in carrying torque applied to the bracket, and includes a hexagon-shaped projection at one end adapted to releasably lock within the hexagon-shaped apertures of the bracket, and a pair of spaced fingers at the other end adapted to mount to a frame member of the bicycle. The angular position of the brace arm relative to the bracket is adjustable so that the spaced fingers of the brace arm may be positioned to mount over and embracingly engage the rear fork member of varying configurations of forks of bicycles.

Abstract: The auxiliary wheel arrangement of bicycle of this invention comprises arms extending sideways from the bicycle body to be vertically displaceable, a means for imparting to the arms a torque required for lowering the tips of these arms and auxiliary wheels attached to the tips of the arms, and is used attached to e.g. the rear wheel of a bicycle on both sides thereof. A bicycle equipped with the auxiliary wheel arrangement of the present invention, which can have its body swayed in either lateral direction, is prevented from tilting of the body when it is parked or stopped, being thus kept upright then without fail.

Abstract: A portable bicycle stand for supporting a bicycle in an upright position is designed to permit its removal from the bicycle when not in use. The bicycle stand includes an elongated support leg having at a first end a cooperating finger and thumb adapted to detachably mount the support leg to the bicycle frame in a first support position wherein a second opposite end of the support leg engages the ground to support the bicycle in a generally upright orientation. Intermediate its first and second ends, the support leg further has a pair of aligned arms which, in cooperation with the support leg itself, are adapted to detachably mount the support leg on the bicycle frame in a second storage position.

Abstract: This disclosure relates to a center stand for a motorcycle having a frame. The stand includes a support that is secured to and projects from the lower center part of the frame, supporting plates rotatably attached by first pivots to said support, second pivots on the supporting plates, and a main leg that is pivotably connected with said second pivots. In operation the center stand is erected by rotating the main leg around the second pivot to a generally vertical position and then rotating the supporting plates first around the first pivot until the main leg reaches the ground and then around the second pivot to lift the motorcycle onto the main leg.

Abstract: The involved technical field is that of bicycles, and the invention is corned with a stand device for holding a bicycle stationary while simulating road running conditions. The technical problem was that of providing a device which could simulate road running conditions with a high degree of verisimilitude and the solution resides in a structure comprising two supporting rollers, one for each wheel, which are kinematically connected to each other and to a fan, adapted to generate a flow of air blowing against the bicycle, the bicycle being supported on means adapted to heel and move sideways.

Abstract: A removable and foldable stand for bicycles comprises two pivotally connected elongated rectangular members each having a flat portion and an angularly bent end which is provided with a hexagonal opening to receive the axle nut of the bicycle wheel. A push button latch locks the two rectangular members in an aligned straightened position, or a nested folded position. Alternatively, the bent end portions are provided with a rotatable lock nut which may be threaded onto the exposed threads of the wheel axle. When not in use, the stand may be removed and folded compactly to be carried in the pocket of the rider, or conveniently stored in a small space.

Abstract: A bicycle kickstand which is adapted to attach to the cross brace of the chain stays of a bicycle frame. The kickstand is of the type having a housing with a transverse flange at an upper end which extends beneath the chain stays and a leg pivotally attached to the housing. The kickstand attaches to the cross brace by a lower jaw which is attached to the midportion of the flange, an upper jaw and a bolt which adjustably attaches the upper jaw to the lower jaw so that the jaws may be clamped against the cross brace. In a preferred embodiment, each of the jaws includes a concave clamping surface shaped to matingly engage the cross brace and provide a relatively large area of contact, thereby reducing the clamping force required to attach the kickstand to the frame securely.

Abstract: The vehicle has a three wheel, triangular wheelbase and a pyramid-shaped frame formed of four tubular side members and an inclined tubular steering fork supported rotatively by the side members adjacent its upper and lower ends. Handle bars located generally above the rear wheels rotate the steering fork to turn a front wheel located adjacent the front corner of the frame for steering the vehicle. Two spaced apart rear wheels are mounted for rotation about a common axis adjacent the rear corners of the frame. A platform for supporting a rider is mounted by the frame between the rear wheels, and forms a support surface so constructed and arranged with respect to the handle bars and rear wheels that the vehicle may be tilted onto two of its three wheels at a time, and then may be balanced in that position so as to perform a "wheelie" or similar maneuver, merely by concentrating or shifting the weight of the rider on the support surface and applying fore, aft or lateral balancing forces to the handle bars.

Abstract: Structurally integrated equipment is selectively, individually or conjointly detachably attachable to a three-wheeled vehicle for preventing rearward tipover, carrying cargo, rendering the vehicle waterborne, enhancing travel over snow or providing power takeoff. Supports extending from the framework of the vehicle are adapted to receive and retain with quick disconnect fittings frame elements of the equipment. The frame elements may be adjustable to accommodate load variations and variances of the surface traversed.

Abstract: A support pad or standpad for maintaining a two-wheeled vehicle having a kickstand in the upright position when placed between the two-wheeled vehicle kickstand and a soft supporting surface. The standpad consists of a thin planar member having flat surfaces. Means for reinforcing the planar member are distributed throughout the member. An aperture is cut through the thin planar member and is connected to the periphery of the thin planar member by a slit. The aperture and slit allow the standpad to be stored on a convenient cable or loop such as the speedometer cable or clutch cable on top of the transmission or a cord or leather loop conveniently located on the two-wheeled vehicle. During normal operations on soft supporting surfaces, the standpad is placed between the vehicle's kickstand and the soft supporting surface to prevent the kickstand from penetrating the soft supporting surface and thereby preventing the vehicle from toppling over.

Abstract: A motorcycle having in-line front and rear wheels, and a pair of outrigger wheels spaced laterally apart at opposite sides of the rear wheel. The outrigger wheels may be extended downwardly to engage the roadway to provide lateral support against overturning, or retracted upwardly when their use is not desired. When extended, they are yieldable upwardly to permit leaning of the vehicle in turns. A control system permits selective use of a first operational mode in which the outrigger wheels are automatically retracted only at vehicle speeds above a pre-set level, a second mode in which the wheels remain extended at all speeds, and a third mode in which the wheels are retracted at all speeds.

Abstract: A support leg (24) is attached to a rear portion (12) of the frame (10) of a motorcycle (2) on the same side of the frame (10) as the kickstand (8), between the kickstand (8) and the rear wheel (6). A pair of laterally spaced ears (42) project upwardly from the upper end of the leg (24). A screw (46) extends through coaxial holes (44) in the ears (42) and a preexisting hole (14) in the frame (10) to attach the leg (24). The lift stand (22) has a support position in which the leg (24) extends downwardly and forwardly from the frame (10) to the ground and the motorcycle is supported on its front wheel (4), the kickstand (8) and the lift stand (22), with the rear wheel (6) being elevated from the ground. A support surface (38) between the ears (42) contacts a bottom surface of the frame (10). To move the lift stand (22) into its support position, the motorcycle (2) is tilted to lean toward the kickstand (8) and the leg (24) until the leg (24) contacts the ground.

Abstract: Two embodiments of turbo-charged motorcycle arrangements wherein the turbo-charger is located so as to be protected by the stand of the motorcycle when the stand is in its retracted position.

Abstract: A kickstand supporting device usable with motorcycles and other two wheeled vehicles utilizes a rigid plate with obverse and reverse surfaces, an upright wall enclosure being positioned on the obverse face to receive and releaseably retain the base of the vehicle kickstand. A combined centering and spacing fillet is located on the obverse face and adjacent the wall to center the kickstand base and space the kickstand base from the wall. The reverse face of the device may be provided with spiked protrusions to engage the parking surface during use and to help retain the device on the vehicle during travel, a pair of cleats and an elastic strap cooperating with the protrusions to retain the device on the vehicle during travel.

Abstract: In common style cycle kickstands, particularly bicycle kickstands by cycles used and parked on dirt or soft blacktop drives, the weight of the cycle when the stand is in cycle supporting position will cause the kickstand foot to dig into the surface. The cycle will then fall over on its side damaging the cycle and if the cycle was on a blacktop surface, the stand damages that surface also. This problem is overcome by the present invention which is an accessory for the kickstand that is constructed from deformable plastic or rubber. The accessory is provided with a passageway slightly smaller in cross-section than the stand leg and foot so that it can be manually pushed over the kickstand leg and foot frictionally engaging the kickstand leg and foot in a tight fit.

Abstract: A simple and sturdy stand for motorcycles known as dirt bikes that may be positioned between the wheels of the dirt bike and operable by the foot of the user for engaging its frame to raise and lower the front wheel of the dirt bike off of its supporting surface.

Abstract: This is an apparatus for uprighting a motorized two-wheeled vehicle which is lying on the ground. The apparatus is designed to upright the motorized two-wheeled vehicle no matter which side it is lying on. The apparatus is attached to the motorized two-wheeled vehicle where the fixably mounted device of the apparatus contains two removable retainer pins and two hinges; a pair of side portions each selectively hingably connected to the fixably mounted device, and an expansible center portion containing a piston and cylinder which is connected by a hose to means for pressurizing the cylinder space above the piston. The means for pressuring the cylinder space are either hydraulic or compressed gas. In another embodiment the expansible center portion of the apparatus is replaced by a screw mechanism, each end of which is hingeably connected to the side portions of the apparatus.

Abstract: A support system for a wheeled vehicle that includes a housing mounted on the vehicle, a pair of support arms pivotally mounted on the housing, wheels mounted on the support arms for engaging a supporting surface, and a crank arm attached to each support arm. Locking fittings pivotally mounted on the housing carry teeth engageable with teeth mounted on the crank arms to hold the crank arms in selected positions. The locking fittings are withdrawn from tooth engaged position to release the support arms for swinging movement. The support arms are swung between a raised position and a lowered vehicle supporting position. The locking fittings hold the support arms in raised position or in selected lowered position when released.

Abstract: A device that allows support at the correct angles on a bicycle or motorcycle to enable the rider to perform a wheelie. Contact is on two points, the rear wheel and the wheelie support which offers stability.

Abstract: A bicycle training wheel bracket support for supporting the bracket at a desired height, comprising a brace member having a first portion apertured to accommodate the threaded end portion of a bicycle rear wheel axle, and a second portion comprising a torque arm having a forked extremity for embracing a bicycle frame, a housing secured between the first and second portions of the brace member, a substantially vertically extending sheath secured within the housing for receiving the training wheel bracket, said sheath having a transversely disposed aperture extending therethrough and situated for alignment with a selected one of the bracket apertures, a movable locking pin supported within the housing for substantially horizontal movement into the sheath aperture and a selected one of the bracket apertures, said locking pin being spring-biased into said apertures for locking the bracket at the desired height, and at least one projection rigidly secured to the locking pin and extending through an opening in the

Abstract: A land vehicle has front, rear and two side wheels arranged in a diamond-shaped configuration to provide a triple track mode of operation. A steering mechanism mounted on the vehicle frame controls one of the front and rear wheel assemblies. Each one of the other wheel assemblies includes an articulated suspension having a suspension arm pivotally connected to the frame and having its wheel journaled for rotation thereon. A device is controlled by the steering mechanism and rotates the arm about its pivotal axis to tilt its suspension into the direction of a turn of the vehicle to facilitate its maneuverability. Another device controls the movement of the suspension arm for the driving wheel to maintain it in engagement with the terrain. The steering mechanism includes devices for causing the side wheels to turn in unison with the main steering wheel to facilitate steering of the vehicle.

Abstract: An elastic lateral support with supporting wheel for children's bicycles comprising a single resilient part releasably attachable at one end to the frame of the bicycle and containing a supporting wheel at the other end, said lateral support in the mounted state at a tilting moment of 15 Nm exhibiting an elastic deflection of at least 20 mm, preferably at least 40 mm. The lateral support is attached to the frame of the bicycle with releasable clamping support composed of a inside clamping holder and an outside clamping holder bolted together at one end by the wheel nut and on the other end by a clamp bolt.

Abstract: A tubular frame, upon which a rear end of a bicycle is supported in elevated position, so that the rear wheel does not engage the ground, but engages a friction wheel, that retards the free rotational movement of the rear drive wheel, so that a rider upon the bicycle must apply physical effort during a pedaling operation; the frame including two vertical plates, between which a cylindrical fastener is supported, and to which the rear wheel of the bicycle is attached, and the device additionally including a horizontal bar carrying the friction wheel, the bar being adjustable in position, for changing the friction force against the bicycle wheel where adjustable locking of the bar comprises a forward clamp member having a tooth on the underside thereof selectively engaging between ratchet teeth upon the upper side of the bar with the bar being downwardly movable against a compression coil spring mounted on the frame so as to selectively disengage the teeth and a block mounted on the upper side of the bar for be

Abstract: A bicycle having forwardly and rearwardly extendible guide wheels and a pivotably mounted lateral outrigger wheel to allow use of the vehicle as a bicycle on a solid roadway or a velocipede on railroad tracks. The forward and rearward guide wheels adjust laterally to accommodate a wide range of rail sizes and the outrigger wheel adjusts laterally to accommodate normal rail spacings. With the appurtenant wheels folded to an inoperative position, the vehicle may be effectively operated as a normal bicycle.

Abstract: An apparatus for preventing turnover of a motorized two-wheeled vehicle of the type in which the vehicle body is provided on both sides thereof with a pair of left and right subsidiary wheels on a pair of left and right swingable arm members. On respective upper sides of the arms are a pair of left and right oil pressure dampers each interposed between the vehicle body and the arm member, and respective oil pressure chambers of the two oil pressure dampers are interconnected through a connecting tube having a flow control valve at the center thereof. The vehicle body supports an internal combustion engine between the front and rear wheels so that the center of gravity thereof is positioned approximately midway between the wheels, the pair of subsidiary wheels being disposed on a line extending in the vicinity of the center of gravity.

Abstract: A safety control that can be used on all tandem wheel vehicles, except that throttle and engine ignition controls are additions to the structure of the safety control for motor driven vehicles. The driver can operate the following mechanisms: horn (motorcycle only), throttle (motorcycle only), wheel brakes, controllable legs, engine ignition switch (motorcycle only), locking devices in a predetermined sequence for up-holding the vehicle by applying only a single operation of the hand grip or foot pedal or both of them to prevent the vehicle from tilting over in an emergency or in an ordinary stop or parking or at a very slow speed of the vehicle. The driver does not necessarily use his feet to touch the ground to remain erect, nor to get off from the vehicle to stow up said legs by foot power, thereby allowing safety and ease in using a tandem wheel vehicle.

Abstract: A bicycle safety accessory for preventing tipping over when the rider is executing a "wheelie" maneuver, the safety accessory utilizing a third wheel which is positioned directly behind the rear wheel of the bicycle and normally out of contact with the ground. The auxiliary wheel is carried by rearwardly extending support arms which are attached to the rear wheel and framework of the bicycle by special purpose bracketry such that the auxiliary wheel is substantially vertically adjustable.