Abstract: An enhanced projectile expelling apparatus provides stability and versatility expelling projectiles at various speeds and trajectories. The projectile expelling apparatus has a rotational expelling housing supported by a supporting stand that is adjustable into innumerable configurations by rotating a launch tube and/or tilting a feeder elbow disposed to abut the launch tube in rotational engagement. A rotational connector assembly facilitated the rotation of the launch tube, and a rearwardly-disposed pivot adjustment assembly facilitates the tilting of the feeder elbow. A speed-controlled motor rotates a drive wheel that imparts speed and spin to the projectiles. Depending upon the rotation of the launch tube, tilt of the feeder tube, and rotational speed of the drive wheel, the projectile expelling apparatus expels projectiles in various straight, curving, rising, dropping, and sliding trajectories.

Abstract: An enhanced projectile expelling apparatus provides stability and versatility expelling projectiles at various speeds and trajectories. The projectile expelling apparatus has a rotational expelling housing supported by a supporting stand that is adjustable into innumerable configurations by rotating a launch tube and/or tilting a feeder elbow disposed to abut the launch tube in rotational engagement. A rotational connector assembly facilitated the rotation of the launch tube and a rearwardly-disposed pivot adjustment assembly facilitates the tilting of the feeder elbow. A speed-controlled motor rotates a drive wheel that imparts speed and spin to the projectiles. Depending upon the rotation of the launch tube, tilt of the feeder tube, and rotational speed of the drive wheel, the projectile expelling apparatus expels projectiles in various straight, curving, rising, dropping, and sliding trajectories.

Abstract: A bicycle repair stand having a main body extending vertically from a base that is mounted to a ground surface and which includes first and second bicycle hangers extending from the main body in opposing directions. An access opening extends through the main body and cables suspend a set of bicycle tools within the access opening, such that each bicycle tool is accessible in opposing directions for use on a bicycle held by either one of the first or second bicycle hanger. The first and second bicycle hangers may also be positioned at different heights to avoid interference between two bicycles during use.

Abstract: A support stand for supporting a bicycle includes a base, and a pair of lateral support members extending upwardly from the base in opposed relation to each other to define a wheel receiving channel therebetween. The wheel receiving channel extends along a channel axis. A pair of flanges extend from respective ones of the pair of lateral support members, with the pair of flanges being arranged so as to be engageable with respective opposed portions of the bicycle frame to support the bicycle frame with the rear wheel off the ground.

Abstract: A bicycle workstation that is removably suspended in a doorway when in use includes several elongate members that collectively provide at least three contact surfaces, and an additional elongate member that, in the illustrative embodiment, couples to a clamp suitable for clamping to a part of a bicycle. The contact surfaces are arranged such that the weight of the bicycle forces them against a wall, door frame, and moulding on both sides of the doorway, thereby securely suspending the bicycle workstation, and the bicycle clamped to it.

Abstract: A cable hanger for securing cables to a supporting structure includes: a base panel having opposed ends; a pair of arms attached to a respective end of the base panel and having a free end; a pair of locking projections, each of the locking projections attached to a respective free end of the arms; a pair of gripping members, each gripping member attached with a respective arm or to the base panel, wherein the arms and locking projections are spread apart to enable insertion of a first cable between the arms, wherein the gripping members engage and grip the first cable, and wherein the locking projections are inserted into the aperture of the supporting structure; and at least one finger attached to and extending from one of the arms or the base panel, the finger configured to deflect and grasp a second cable against the arm or base panel.

Abstract: A storage stand having a base with a main tube having a first end, a middle portion and a second end with at least one wing receiver affixable to the main tube, a pair of outer stand tubes each having a first end, a middle portion and a second end; a pair of leg connectors to connect the main tube first and second ends to the middle portions of the pair of outer stand tubes; feet located at each of the outer stand tubes first and second ends; at least one wing secureable to the at least one wing receiver; and at least one payload carrying member affixable to the at least one wing.

Abstract: A support for two-wheeled vehicles includes a rod which has a first end for coupling to the vehicle and a second supporting end. The rod is formed by a plurality of sections able to be coupled to one another. The sections may be hollow and include a portion with a reduced width which is introduced in an adjacent section. Support is thereby provided for two-wheeled vehicles, in particular bicycles, which allows for the easy placement and removal thereof, without the need to use tools, and which, furthermore, is universal, i.e., the support can be used on any two-wheeled vehicle. The length of the support is able to be varied in a simple way and without the need to use any tools, even allowing the user to use the same support for different vehicles.

Abstract: A high-density bike rack system includes a rack structure including: a first side configured to releasably engage a first bicycle, a second side configured to releasably engage a second bicycle, a forward portion, and a rearward portion including one or more tube assemblies. The one or more tube assemblies include at least one partially diagonal tube assembly.

Abstract: A bicycle carrier convertible between a first configuration in which one or more bicycles are accommodated and a second extended configuration in which one or more additional bicycles are accommodated for transport on a carrying vehicle. The bicycle carrier can include a vehicle engaging frame configured to be mounted on a carrying vehicle. An elongate rearward extending support member can be coupled to the frame at a proximate end of the support member by a variably configurable hub configured to set the support member in a plurality of orientations relative to the frame. A manual actuator can be operably coupled to the variably configurable hub by a linkage. A distal end of the support member can be positioned away from the frame and configured to be alternately coupled to the actuator, or an add-on support member that accommodates one or more additional bicycles coupled to the bicycle carrier.

Abstract: A bicycle repair stand contains a fitting sleeve, a retainer, a presser, at least one movable drive member, at least one screw bolt, and at least two positioning elements. The fitting sleeve includes a channel and a connection portion. The retainer includes a slidable conduit, at least one locking protrusion, and a press chamber. The press chamber has a cover, at least one pressing orifice, at least one coupling orifice, at least one receiving orifice, and a connection shaft. The presser includes at least one button, at least one engagement portion, a projected tooth, at least one groove, and at least one resilient element. A respective movable drive member includes at least one sidle portion, at least one trench, and a movable fixing portion. A respective screw bolt includes a ratable handle and a threaded section. The screwing section has threads, and a respective positioning element includes a spring.

Abstract: A vertical bike stand contains: a base, a coupling column, a guide groove, and a positioning rack. The positioning rack includes a toothed section, and the support tube includes a channel. A holder is arranged on the support tube and is configured to close the channel and includes two prongs and a recess. A fixer is fitted on the support tube and is rotatably connected with a connector. The connector includes a shaft rotatably connected with the fixer, a press tab extending from an upper end of the connector, an operation portion extending outward from the press tab, an orientation segment extending into the guide groove from a lower end of the connector, and a paw extending from the orientation segment and configured to engage with the toothed section. The orientation segment is pushed by a first resilient element to fix in the fixer.

Abstract: An apparatus for safely storing guns in a field environment is disclosed herein. The apparatus is comprised of a recoil rest pad for receiving and supporting a gun's recoil pad and ensuring that it does not become damaged, a barrel support pad for securing the barrel of the gun within an interior diameter that is larger than the diameter of the barrel, and an opening that can be stretched, but wherein the opening—in its unstretched state—is less wide than the diameter of the barrel, and an attachment mechanism for attaching the apparatus to a vehicle. Moreover, the various elements of the invention are connected by a fabric-type element, which makes the apparatus lightweight, and easy to pack-up and stow when not in use.

Abstract: Disclosed herein is a bicycle rack for organizing a storage area and associated systems and methods of use thereof. The bicycle rack can be adapted to receive and hold bicycles having various diverse characteristics, and store the bicycles in a space-efficient manner. The bicycle rack can have a tire receiving zone for receiving and holding a tire of a bicycle for storage. The tire receiving zone can have an adjustable zone width, an adjustable zone depth, and an adjustable zone orientation.

Abstract: A bicycle stand for supporting a bicycle or bicycle frame during assembly or repair, and a method of assembling a bicycle are provided. In one embodiment, the bicycle stand comprises a base for contact with a ground surface, and a post extending substantially vertical from the base and being supported by the base. The post includes a cylindrical receiving portion located at an upper end thereof for engaging a seat tube of a bicycle frame while the bicycle is in an upside-down or inverted position. The cylindrical receiving portion has a diameter of greater than 0.5 inches and less than 0.75 inches. A seat adapted for supporting the bicycle frame is located below the cylindrical receiving portion. The seat is positioned between 30 inches and 60 inches above the ground surface. The bicycle can be freely rotated about a central axis of the post while being supported by the bicycle stand in the upside-down or inverted position.

Abstract: A bike stand includes a base that has a sleeve that is open-ended at a first end of the base and that has a first notch at a second end of the base. A support slides within the sleeve and extends partially therefrom. The support terminates in a cradle disposed outside of the sleeve. A locking structure cooperating with the sleeve and support fixes the support relative to the base. A rail has a second notch for engagement with the first notch in the base wherein a surface of the base and a surface of the rail are coplanar and wherein the rail and base are disposed perpendicular to one another.

Abstract: The present disclosure is directed to a bicycle parking structure comprising a plurality of bicycle hangers supported by a crossbar assembly. Each bicycle hanger is configured to support a bicycle in a substantially vertical position. The bicycle hangers are spaced apart from one another along the length of the crossbar assembly. Each of the bicycle hangers may be secured to the crossbar assembly so that the bicycle hanger is fixed at a desired position or unsecured from the crossbar assembly so that the position of the bicycle hanger along the length of the crossbar assembly may be adjusted. In this manner, the distance between adjacent bicycles need not be fixed and the bicycle parking structure can be adapted for a particular space. The bicycle parking structure is designed to provide for a space-efficient, high-volume parking of bicycles.

Abstract: A vehicle restraint apparatus is for restraining a vehicle 1 on one or more rollers 7 of a vehicle test system. The vehicle restraint apparatus 11 includes a vehicle restraining jig 12 to connect the vehicle 1 with a pole 10 on a floor 9, and a deflection absorbing mechanism 90 to absorb deflection of the vehicle restraining jig 12 produced at the time of vehicle test with the vehicle test system.

Abstract: A vehicle roof rack crossbar assembly includes a vehicle crossbar and an installation tool. The crossbar includes a longitudinal body and a stanchion configured to support the longitudinal body to a vehicle roof rack component. The vehicle crossbar further includes a tool storing area configured to store the installation tool that is used for installing the crossbar to the vehicle roof rack component.

Abstract: The present invention provides a device and method for adapting a vehicle-mounted bicycle carrier to function as a stand for holding the bicycle to perform maintenance and repairs. A bicycle carrier attachment is provided which may be added to or manufactured as a part of a typical vehicle-mounted bicycle carrier. The attachment consists of a cradle with an open channel to receive and support an axle of the bicycle, an attachment device for attaching the cradle to the carrier, and a mechanism for elevating or lowering the cradle and thus the axle supported by the cradle. When the cradle is elevated, the bicycle is held in a position that allows the wheel surrounding the lifted axle to freely rotate, as is useful for maintenance functions.

Abstract: Securing mechanisms are provided for various applications. As consistent with one or more embodiments, first and second securing mechanisms respectively couple to a surface and an object to be secured. The first securing mechanism includes a device interface that secures a first portion of a device, and includes a rigid protrusion having a concave surface and a flexible structure coupled to the rigid protrusion and configured and arranged to flexibly secure the device via the concave surface. A first surface interface mitigates movement of the first securing mechanism and the first portion of the securable device relative to a surface. The second securing mechanism includes a device interface that secures a second portion of the securable device relative to the second securing mechanism, and a second surface interface that mitigates movement of the second securing mechanism and the second portion of the securable device, relative to the surface.

Abstract: A bicycle trainer includes a magnetic control damping device controlling a resisting force of a roller set to simulate stamp strengths required by a bicycle on various roads. A lifting device controls a support frame and a base seat to drive a front fork of the bicycle up or down to dynamically simulate states of the body of the bicycle on various roads, so that the actual effect closest to the bicycle running on an uphill, smooth or bumpy road can be achieved. In addition, a power generation device converts the rotating power, generated by the roller set, into the electric power for the dynamic simulation or other electronic devices.

Abstract: A loading device for users to move vehicles onto an elevated platform, using an inclined structure formed of a plurality of horizontal sections that are each adjustable so as to adjust the width of the inclined structure.

Abstract: The present disclosure relates to a bicycle clamp including a rail having an elongated orientation having a first end opposite a second end. A first stabilizer is attached to the rail adjacent to the first end, the first stabilizer configured to at least partially receive an associated frame of a bicycle and a second stabilizer is operably attached to the rail and movable along the rail between the first stabilizer adjacent the first end and the second end. The second stabilizer is adapted to be rigidly attached to the rail at a support position. The second stabilizer is configured to at least partially receive the associated frame of a bicycle wherein the bicycle repair clamp is configured to be placed against the associated frame of a bicycle to support the bicycle in a maintenance position.

Abstract: A bicycle stand which includes a frame with a first channel support and a transversely extending second channel support which are configured to engage with parts of a rim of a bicycle wheel.

Abstract: The present invention relates to a bicycle parking lock apparatus adapted for locking a crank of the bicycle. The apparatus includes a primary lock part and a secondary lock part movable reciprocatingly relative to the primary lock part. The primary lock part defines a recess adapted to receive the crank. The recess is provided with a sidewall such that when the crank is received in the recess, an outboard side of the crank at a first end thereof is shielded by the sidewall. The secondary lock part is adapted to hold the crank in position in cooperation with the primary lock part.

Abstract: The invention provides a vehicle rooftop-mounted cargo container of rigid design that has the capability of sliding forward or rearward in the direction of travel of the vehicle on semi permanent mounting points while remaining attached to the vehicle, and that has the means to selectively keep the container from sliding forward or rearward upon the mounting points, and that also has the capability of being assembled as a container into various lengths using only a few interchangeable component parts.

Abstract: A stationary bike has a main frame. The main frame has a base that is configured to be laid on the ground. The base has its end surface facing the ground provided with a plurality of elastic feet that are arranged symmetrically with intervals therebetween for pressing on the ground. The elastic foot is made of a soft, elastic material and contains therein an inner space defined by a circular wall. When the elastic foot receives an external force from the base, the circular wall of the elastic foot deform correspondingly, thereby allowing the main frame to jolt and simulate road-riding experience.

Abstract: A self-compensating tire compression device is provided for use with a trainer. The device attaches to a frame, such as a bicycle, that holds the axis of a driving wheel fixed. The device has a pivoting portion that presses a driven portion of a resistance device against the driving wheel. The pivoting point of the pivoting portion is located on the trainer to provide a static contact pressure between the driving wheel and the driven wheel, and when the driving wheel begins to rotate and the resistance device begins to resist the rotation, the contact pressure between the driving wheel and the driven wheel increases to prevent slippage between the two wheels.

Abstract: The present invention provides a display panel storing device, having a framework; two support frames, which are opposite to each other and slidably connected to the framework, for supporting a display panel therebetween; and a driving unit for driving the two support frames to move towards or away from each other to change the distance between the two support frames. The display panel storing device can simplify the adjustment procedure, increase efficiency, and reduce manpower cost, and is unnecessary to detect the symmetry of the two support frames.

Abstract: A bicycle-fork support device configured to hold: a conventional fork, allowing insertion of a quick-release-skewer support shaft, in a lower end portion of the fork of a bicycle; a through-axle fork where a through-axle insertion hole for securing a through-axle hub formed in a lower end portion of the through-axle fork, and configured to deal with outer diameters of through-axle forks. The support-fork switching unit includes: a support-device main body where a hollow portion is formed; end portions formed in right and left end portions of the hollow portion; a conventional-fork-use supporting body including, a contacting portion formed with an internal shape that fits the support shaft; a through-axle-fork-use supporting body including, a contacting portion formed with an internal shape that fits the through axle; and a unit for removably mounting any of the supporting bodies on the right and left end portions.

Abstract: A bicycle and bicycle parking and lock system wherein a hub locking device that is secured to a bicycle cooperates with a parking rack. The bicycle includes an engagement member that is secured to an axle of the bicycle. The engagement member selectively removably cooperates with a recess formed in the parking and lock system. The parking and lock system includes a number of upstanding members that are positioned to generally flank the front wheel of a bicycle to maintain the bicycle in a generally upright orientation. Each or select number of the upstanding members include a lock system that cooperates with the locking engagement member so as to secure the respective bicycle with respect to the parking system.

Abstract: The present invention relates to a bicycle carrier which can be mounted inside a vehicle for carrying a bicycle. The bicycle carrier includes: a frame which is formed so as to be settled on a flat bottom; a screw shaft which is joined with the frame; a sleeve which is joined with the screw shaft; fastening nuts which are joined with both ends of the screw shaft; a holding rail which is mounted on one side of the frame; and fixing means for fixing the frame in a vehicle, and thus can be mounted in a rear space of a vehicle, such as a medium or large sized SUV or a van, for easily fixing a bicycle by separating the front wheel from the bicycle.

Abstract: The invention encompasses a removable attachment for installing on a bicycle with the goal of altering the resistance to either front tire or back tire revolution. In this way, the bicycle includes enhanced physical training capabilities allowing the rider to use a bicycle on a standard trainer frame or as a regular bicycle for riding in the usual manner. In one embodiment, the attachment includes a resistance support connected to a bicycle and supporting a resistance device that engages a bicycle wheel or bicycle tire for altering the resistance to tire revolution. In this exemplary embodiment, the apparatus includes a resistance support attached to the bicycle proximate a bicycle tire along with a resistance device removably attached to the resistance support. In one embodiment, the resistance device defines a slot, and the resistance support projects through the slot to position the resistance device against the bicycle wheel or the bicycle tire.

Abstract: A repositionable mount and related methods including a method for mounting a bicycle to a bicycle rack The repositionable bicycle fork mount can include a mount for connection to a vehicle to support the bicycle fork, a bicycle fork receiver coupled to the mount, the bicycle fork receiver being configured to receive and secure the bicycle fork, and means for repositioning the mount and/or bicycle fork receiver with respect to the vehicle. Repositioning the mount and/or a bicycle fork receiver with respect to the vehicle can include a forward most position related to a relatively large bicycle and a rearward most position related to the relatively small bicycle such that a rear wheel of both the relatively large bicycle and a rear wheel of the relatively small bicycle are supported by a rear tailgate of the vehicle when attached to the properly positioned repositionable bicycle fork mount.

Abstract: A two-stage resistance trainer is provided having a first magnet that is in proximity to a rotating wheel, and a moveable second magnet that is linked to the first magnet. The first magnet is moved when the rotating wheel rotates and the second magnet is moved closer to the rotating wheel to add a second order effect to the resistance. The trainer is capable of adjusting the first magnet position in relation to the rotating wheel to provide a different relationship of speed to resistance.

Abstract: One bicycle service kit includes: a main body; at least one slot formed at an upper end of the main body; and at least one cable positioned in the slot, the cable including a head portion held within an interior of the main body, the head portion having a dimension larger than a width of the slot, the cable including a free end configured to be attached to a bicycle tool. Another kit includes: a circular main body defining an open interior; a shelf formed in the open interior of the main body, the shelf defining a plurality of slots; at least one cable positioned in at least one of the slots, the cable including a free end configured to be attached to a bicycle tool; and a front cover coupled to close the open interior of the main body.

Abstract: The present teaching are related to an article and method comprising: a.) a horizontal rail capable of bearing loads; b.) affixed to the horizontal rail are two or more vertical support rails wherein the distance between the vertical support rails may be varied; c.) affixed to the horizontal rail are two or more carrying rails wherein the carrying rails are capable of carrying a load wherein the carrying rails may be moved to multiple positions; wherein the horizontal rail may be affixed to the vertical support rails and the carrying rails are affixed to the horizontal rail directly or through a clamping mechanism, and the vertical support rails are adapted to be affixed to a side wall of the bed of a pick-up truck. The system may be adapted with add-on accessories for carrying articles for transport.

Abstract: A self-compensating tire compression device is provided for use with a trainer. The device attaches to a frame, such as a bicycle, that holds the axis of a driving wheel fixed. The device has a pivoting portion that presses a driven portion of a resistance device against the driving wheel. The pivoting point of the pivoting portion is located on the trainer to provide a static contact pressure between the driving wheel and the driven wheel, and when the driving wheel begins to rotate and the resistance device begins to resist the rotation, the contact pressure between the driving wheel and the driven wheel increases to prevent slippage between the two wheels.

Abstract: A bicycle trainer is adapted to be arranged with a bicycle to simulate riding a bicycle on an outdoor road. The bicycle includes a stand, a roller, a first resistance source and a second resistance source. The stand is adapted to support the bicycle. The roller is pivoted to the stand and is adapted to contact a bicycle wheel of the bicycle. The first resistance source is coupled to the roller and provides resistance to the bicycle wheel via the roller. The second resistance source is coupled to the roller and provides resistance to the bicycle wheel via the roller.

Abstract: A portable and adjustable motorcycle wheel support including a wheel chock and a support post is provided. The wheel chock includes a first side member and a second side member, each extending from a base. The first side member and the second side member form a receptacle in between sized to secure a wheel within. The support post extends laterally from the wheel chock, and is formed to support the wheel chock in an upright position. The support post is extendable in length to secure the present invention in different sized truck beds and trailers.

Abstract: A collapsible folding training device is provided having a rear frame portion that contains a resistance device. The resistance device uses eddy currents and has a pivoting magnet internally that creates progressively increasing resistance as speed increases. An arm is attached to the rear frame portion that can pivot from a stored position to an in-use position. At the opposite end of the arm, a front frame is attached where it can affix a portion of a driving mechanism, such as a bicycle. The front frame supports and stabilizes the driving mechanism. The arm sets the distance between the front frame and the resistance device.

Abstract: The present disclosure provides an aesthetically pleasing, functional, versatile solution to the problems associated with bicycle storage. The free-standing bicycle rack includes a base having at least two legs, a vertical support member projecting from the base, and a hook attached to the vertical support member for holding the wheel of a bicycle, such that the bicycle is stored in a vertical orientation. The bicycle rack is readily expandable to accommodate different numbers of bicycles, and the hook may be repositioned to different heights to accommodate bicycles of different sizes.

Abstract: A bicycle fork anchor includes an anchor body which can have an interior space housing a skewer contraction device. The body can include a pair of skewer access ports. Also, the anchor body can include a pair of axially aligned elongate skewers, each extending through the access ports. The skewer contraction device can be operably coupled to the engagement portion of each of the pair of skewers. The skewer contraction device can be laterally moveable within the interior space of the anchor body so that during contractive operation of the skewer contraction device, the skewers draw together and simultaneously the skewer contraction device moves laterally within the interior space of the anchor body causing the skewers to extend different lengths outside the body and thereby accommodating reception of different thickness fork dropouts on the skewers.

Abstract: A bicycle stand has a base, an upright support structure extending upwardly from the base to a top end, and a spindle engaging post that extends outwardly from the top end of the upright support structure, for engaging a spindle of a bicycle so that the bicycle stand supports the bicycle in the upright position on a surface.

Abstract: The present invention relates generally to a display apparatus. More specifically, the invention relates to an apparatus that displays large items, such as bicycles, safely and in a manner that enhances sales experience. The present invention also relates to associated kits and packages.

Abstract: A freestanding storage station includes a pair of spaced-apart, generally parallel side members and a roof that is supported by the side members. Each side member includes a cross bar, and at least one saddle-shaped, hollow ballast-receiving member that straddles the cross bar and rests on the ground. When filled with ballast, the ballast-receiving members serve to stabilize the storage station relative to the ground and enable the storage station to resist movement due to environmental winds or collision. The ballast-receiving members include a first ballast-receiving portion and a second ballast-receiving portion, and the ballast member straddles the cross bar such that the first ballast-receiving portion resides on an interior-facing side of the cross bar and the second ballast-receiving portion resides on an exterior-facing side of the cross bar.

Abstract: Certain embodiments disclose a corral and enclosure defined by three members having an opening configured to hold one or more shopping carts and display one or more advertisements, with two substantially parallel walls of different lengths and advertisement panels affixed on the walls, such that they are staggered. The staggered arrangement of the at least two advertisement panels facilitates better visibility and allows the simultaneous viewing of at least two advertisement panels. The longer member also further protects vehicles parked on its side from colliding with shopping carts.

Abstract: A free-standing bicycle parking rack has multiple bicycle parking stations that accommodates most bicycles, including those equipped with disc brakes. The rack has a generally rectangular base, with two longitudinal tubular members rigidly coupled to two lateral tubular end members. Each parking station includes a pair of generally parallel, spaced-apart, interconnected V-shaped uprights which are affixed to one of the longitudinal members. A straight brace interconnects each of the uprights with the longitudinal member to which it is not directly affixed. Upright pairs can be alternately reversed so that each pair is affixed to the opposite longitudinal member, thereby facilitating parking of bicycles on both sides of the rack. A sliding collar, a tire-securing bracket, and a pair of bungee cords, which are provided for each parking station, enable the front or rear wheel of a bicycle to be securely clamped in place for transport.

Abstract: A bicycle rack including a support structure defining at least a back groove portion having an upper and a lower end, and a base groove portion having a front and a rear end, wherein at least the base groove portion is formed with a central narrow groove for receiving a first width of tire, a wedge-angled slot configured to receive tires of a range of widths from a second width to a third width, the second width having a value greater than the first width and the third width having a value greater than the second width, and a transition portion connecting between the central narrow groove and the wedge-angled slot.