Abstract: A clamp (20) includes a first barrel half (26) and second barrel half (28). A hinge pin (30) pivotally couples a first edge (38) of the first barrel half (26) with a third edge (46) of the second barrel half (28). A spring (96) imposes force on the barrel halves (26, 28) to bias a second edge (40) of the first barrel half (26) away from a fourth edge (48) of the first barrel half (28) to create a gap (34) between edges (40, 48), placing the clamp (20) in an open position (22). A handle (32) includes a base (80) that abuts an outer surface (54) of the barrel halves (26, 28) to compel the second edge (40) of the first barrel half (26) toward the fourth edge (48) of the first barrel half (28) to close the gap (34), placing the clamp (20) in a closed position (22).

Abstract: A weight lifting system includes a handle bar and two weight plates. The handle bar is made of a first material and is attached to the two weight plates by inserting each of two ends of the handle bar in a hole in each of the two weight plates, wherein at least one of the two weight plates comprises a center portion made of a second material and a peripheral portion made of a third material, wherein the third material is different from both the first material and the second material, wherein the center portion comprises the hole, in which one of the two ends of the handle bar is inserted, and the center portion is welded to the handle bar.

Abstract: A collapsible exercise weight comprises a first end wall portion, a second end wall portion and a peripheral outer wall that together define a substantially hollow interior. A capped aperture permits the ingress of water into and the egress of water from the substantially hollow interior. A handle connector is for connecting the collapsible exercise weight to a handle. The peripheral outer wall comprises a plurality of wide diameter bellows folds and a plurality of narrow diameter bellows folds disposed alternatingly one with the other. The wide diameter bellows folds and the narrow diameter bellows folds are each movable between an expanded configuration and a collapsed configuration. The narrow diameter bellows folds at least partially fit within adjacent ones of the wide diameter bellows folds when the narrow diameter bellows folds are in the collapsed configuration.

Abstract: An adjustable barbell or dumbbell or exercise device includes a handle having an end member, a spring biased latching element engaged in the end member, a weight member attached onto the end member and having an aperture for engaging with the spring biased latching element and for anchoring the weight member to the end member, a button is slidably engaged in the weight member for selectively depressing the spring biased latching element into the end member and for disengaging the spring biased latching element from the weight member and for allowing the weight member to be engaged onto and disengaged from the end member of the handle. The other outer weight members are attachable onto the weight member in series.

Abstract: A dumbbell mounting assembly for releasably mounting a dumbbell on a bar is provided. The assembly comprises a sleeve including a first end and a second end, wherein the first end has a cap, and a second end is configured for receiving the bar. The assembly also includes a generally J-shaped bracket pivotally mounted to the cap and adapted to secure the dumbbell in the bracket. A method for releasably mounting the dumbbell on a bar using the assembly is also provided.

Abstract: An exercise device, comprising an elongate member which has a pair of end regions with a pair of opposed end portions. Each end portion has a body wherein each body has one of a pair of opposed first end faces and at least a pair of first weighted segments. Each of the weighted segments is removably attachable to the elongate member and/or a corresponding end portion in an operative position. Each first weighted segment also has a second end face which abuts the first end face in the operative position. Each body has a first exterior surface region including and anchor portion for attaching thereto at least one elongate resilient portion at one end of the resilient portion and to a fixed object at the opposing end. A method for using the device is also provided.

Abstract: A barbell assembly includes an axle having two connection holes respectively defined in two ends thereof and two outer tubes are respectively mounted to the two ends of the axle. Each outer tube has a space and two collars are respectively located in the two spaces of the two outer tubes. The two collars are respectively mounted to the two ends of the axle. Two locking units each include a control ring, a locking member and a cap. The control ring is located in the space of the outer tube corresponding thereto. Each locking member has an engaging portion which extends through the control ring and is connected with the connection hole of the axle. The cap is fixed to the outer tube and presses the control ring to contact against the collar and the axle.

Abstract: An adjustable apparatus for the addition of weight(s) to dumbbells. The adjustable apparatus works in a group of four apparati employing strategically arranged straps which loop around the additional weights and the weighted mass on the end of each of a pair of dumbbells. The straps of each apparati pass through a disc. The disc can serve to fasten additional weight to a dumbbell end and/or to retain smaller increments of weight within it.

Abstract: The invention discloses a fitness barbell comprising a holding rod and a gravity body, the gravity body is a ring-shaped gravity fitness ring, a handle arranged in the diameter direction of the ring-shaped gravity fitness ring is arranged in the ring-shaped gravity fitness ring, the holding rod is fastened detachably with the ring-shaped gravity fitness ring through a connecting mechanism composed of a fixing seat and a fastening lock, and the ring-shaped gravity fitness ring is limited between the fixing seat and the lock body of the fastening lock through the lock tongue of the fastening lock. The invention has the following advantages: through the adoption of the ring-shaped gravity fitness ring as the gravity body, multiple purposes can be achieved, and materials are saved; and due to the application of the fastening lock, the gravity body is convenient to mount and detach, and the fastening effect is better.

Abstract: A weight apparatus includes a bar including a handle rotatably attached to an anchorage. The anchorage includes a body and at least one radially extendable and retractable pin, the pin being movable relative to the body between an innermost position and an outermost position. An end of the pin extends radially beyond an external surface of the body when the pin is in the outermost position. The apparatus further includes a weight including a weight opening in which the anchorage is adapted to be received. The weight includes a radially extending pin opening adapted to receive the pin when the pin is in the outermost position to attach the weight to the anchorage. An arrangement is provided for driving the pin to the outermost position upon rotation of the handle relative to the anchorage.

Abstract: Exercise equipment comprising a grippable handle at which said exercise equipment can be lifted by a user, and at least one docking assembly connected to the grippable handle. The docking assembly has opposing arms that define a slot in which at least one weight plate can be removably mounted. At least one locking member is located on the docking assembly to capture and/or lock at one weight plate to the docking assembly once received in the slot.

Abstract: A body contouring apparatus and the method for using such apparatus is provided. The apparatus comprises a flexible rod, which has two ends and a laminar cross-section. The exercise device can switch between a rod shape and a ring shape. The exercise device has two connecting components, which are disposed at the two ends of the flexible rod, and at least one handle portion, which is female-connected to the flexible rod. When the two connecting components are connected to each other, the exercise device is in a ring shape; and when the two connecting components are not connected to each other, the exercise device is in a rod shape.

Abstract: A barbell assembly includes an axle having two connection holes respectively defined in two ends thereof and two outer tubes are respectively mounted to the two ends of the axle. Each outer tube has a space and two collars are respectively located in the two spaces of the two outer tubes. The two collars are respectively mounted to the two ends of the axle. Two locking units each include a control ring, a locking member and a cap. The control ring is located in the space of the outer tube corresponding thereto. Each locking member has an engaging portion which extends through the control ring and is connected with the connection hole of the axle. The cap is fixed to the outer tube and presses the control ring to contact against the collar and the axle.

Abstract: Embodiments of a spring collar are provided for removably securing a disc weight to the sleeve of a barbell, as are embodiments of a magnetic spring collar attachment and associated methods. In one embodiment, the spring collar includes a resilient wire form having a permanent magnet mounted thereto. The spring collar includes a coiled body having a central aperture, and first and second radial arms extending from the coiled body. The first and second radial arms can be moved toward one another to increase the diameter of the central aperture and permit a user to slide the coiled body over the sleeve. The permanent magnet enables a user to removably secure the spring collar to a ferromagnetic surface when the spring collar is not in use.

Abstract: A selectorized dumbbell comprises a plurality of nested weights which have front and rear arrays of rails with the rails being vertically spaced from one another with a space beneath each rail. A handle is insertable into a gap between stacks of nested left and right weight plates. A selector comprises front and rear pin arrays in each end of the handle with the pins in these arrays being selectively movable in a horizontal direction into extended positions located in the spaces beneath the rails for coupling different weights to the handle. The pins in the arrays are movable into their extended positions by a single vertically movable member carried on a vertically rotatable shaft in the handle end or by a plurality of independently movable members in the handle end that are moved by a plurality of keys carried on a top side of the handle end.

Abstract: A dumbbell apparatus which is adapted with a series of weight plates, the number of which can be safely and reliably adjusted with a single simple motion. The apparatus comprises a cradle for storing and deploying the apparatus, weight plates, and a handle apparatus which has two spline bolts which support the weight plates and are used to simultaneously be adjusted by means of an adjusting pin which moves the spline members together through a motion transmitting gear. The apparatus may be further enhance with permanent weights and gripping options.

Abstract: The invention discloses a fitness barbell comprising a holding rod and a gravity body, the gravity body is a ring-shaped gravity fitness ring, a handle arranged in the diameter direction of the ring-shaped gravity fitness ring is arranged in the ring-shaped gravity fitness ring, the holding rod is fastened detachably with the ring-shaped gravity fitness ring through a connecting mechanism composed of a fixing seat and a fastening lock, and the ring-shaped gravity fitness ring is limited between the fixing seat and the lock body of the fastening lock through the lock tongue of the fastening lock. The invention has the following advantages: through the adoption of the ring-shaped gravity fitness ring as the gravity body, multiple purposes can be achieved, and materials are saved; and due to the application of the fastening lock, the gravity body is convenient to mount and detach, and the fastening effect is better.

Abstract: An adjustable weight training device includes a handle having at two sides. Each side of the handle is provided with a selector unit, an adjustment unit and a plurality of weight discs. The adjustment unit is operated to change the connection of the selector unit and the plurality of weight discs so as to change the weight of the weight training device as desired.

Abstract: Exercise weight bars are disclosed that provide an easy and efficient way for a user to quickly remove, add, and secure weight plates to the exercise weight bars. The exercise weight bars provide weight locks that may remain attached to the exercise weight bar during the interchange of weight plates. The exercise weight bars can accept one or more weight plates on the ends thereof. The weight locks includes extension members that engage the weight plates when the weight locks are rotated to a locked position, thereby securing the weight plates to the exercise weight bar. When the weight locks are rotated to an unlocked position, the extension members are retracted to disengage the weight plates, thereby allowing the weight plates to be removed from the exercise weight bar.

Abstract: An add-on weight kit for a selectorized dumbbell comprises a second set of nested weights that are similar in shape and structure to a first set of nested weights originally provided on the dumbbell. The second set of weights has a plurality of overlying rails that will underlie an array of similar rails carried on the first set of nested weights. The kit includes a second handle having vertically spaced openings with the second handle being used in place of a first handle originally provided on the dumbbell. The openings on the second handle are arranged relative to the rails on the second set of weights such that the same connecting pin as used on the dumbbell to couple the first set of weights to the first handle can be used to additionally couple a selected number of the add-on weights to the second handle.

Abstract: The means for securing weight plates (16) on weight rods (10?, 12) or holder bars provides at least one groove (14) formed in an end region (10?) of a weight rod (10?, 12) or in the holder bar. The weight plates (16) are formed with a radial protrusion (17) in their central bore, preferably extending over only a portion of the circumference. The diameter of the bore at the protrusion (17) is greater than the diameter of the end region (10?) of the weight rod (10?, 12) or holder bar axially next to the groove (14). The protrusion (17) falls into the groove (14) and prevents the weight plate (16) from slipping off the weight rod (10?, 12) or holder bar.

Abstract: A weightlifting apparatus has multiple disc weights. Each disc weight has a round base and a round cover assembled on the round base. The round base has multiple locating slots formed therein. The round cover has multiple locating holes formed therethrough. When the locating slots align with the locating holes, lightweight weight plates or coins can be inserted into corresponding locating slots. When the locating slots misalign with the locating holes, the inserted weight plates or coins can be retained in the locating slots. Accordingly, easy weight adjustment and cost-saving effect can be achieved without requiring users to purchase an entire set of disc weights. With incremental fine weight adjustment of weight plates and coins, users can quickly adapt to the adjusted weight, and the exercise injury caused by large increment of weight adjustment can be avoided.

Abstract: A dumbbell comprises a bar that extends generally axially between opposing end regions, a weight plate mass mounted about the bar at each end region, means for retaining the mounted weight plate mass at the respective end regions to define a handle region axially inward of the end regions that can be gripped by a user during exercise movement of the dumbbell, means for mechanically securing the weight plate mass to the dumbbell, said bar extending sufficiently axially outward of the mechanically secured weight plate mass to accommodate an incremental weight plate mounted about the bar axially outward of the mechanically secured weight plate mass, means for magnetically securing a magnetically responsive incremental weight plate to the dumbbell via magnetic attraction unless the mounted incremental weight plate has been rotated about the bar to a decoupling position, and means for establishing a decoupling position in which there is no magnetic attraction between the mounted incremental weight plate and the du

Abstract: A dumbbell has an optional number of weight discs which stand on end in a stand, and a handle with anchorages. The anchorages and the weight discs have connecting structures which, in the axial direction, interconnect the anchorages with a neighboring weigh disc or neighboring weight discs, respectively. On the other hand, the connecting structures permit movement transversely of the axial direction. The weight discs display locking structures, which, in the activated state in directions transversely of the axial direction, prevent mutual movements between the weight discs and the anchorages. The locking structures have locking bodies which are movable so that their directions of movement have an axial component and which are disposed at the peripheral regions of the weight discs, and also are insertable in corresponding recesses in a neighboring weight disc or an anchorage. The locking bodies are operable by an operating arrangement located inside the peripheral contour of the weight discs.

Abstract: An exercise weight system includes an exercise weight bar, a plurality of weights selectively connectable to the exercise weight bar, and a cradle for holding the exercise weight bar and weights. The exercise weight bar has a rod having a longitudinal axis and a selector positioned on the rod such that the selector is rotatable about the longitudinal axis of the rod. The exercise weight bar includes an engagement system that permits a user to selectively secure one or more weights to the rod. The engagement system includes one or more weight engagement members and a binary cam system that selectively moves the one or more weights engagement members between a first position and a second position to selectively engage or disengage various combinations of the one or more weights when the selector is rotated about the longitudinal axis of the rod.

Abstract: A dumbbell having an antimicrobial handle comprises a bar having a pair of end regions, and extending generally longitudinally therebetween along a generally central axis, weight plate masses mounted at the end regions and mechanically secured thereto, and a pair of collars located at longitudinally opposed positions on bar to define a handle region therebetween. A handle is located within the handle region and includes a generally tubular grip surface member supported by the bar and formed from an antimicrobial copper alloy, the generally tubular grip surface member extending generally axially between longitudinally spaced-apart end regions. The pair of longitudinally-spaced generally annular collars have axially-inwardly extending flange portions sized and structured to substantially circumscribe the end regions of the generally cylindrical grip surface member and to securely capture the end regions between the flange portions and the bar.

Abstract: A adjustable barbell producing decreased destabilizing forces during the lifting movement, and a method for making same, includes a bar having a pair of longitudinally-separated inner collars weighing no less than approximately 30 lbs, a pair of sleeves mounted for rotation about the longitudinal axis of the bar and sized to accommodate the through-holes of removable weight plates mounted on said sleeves, each sleeve being positioned longitudinally outward of a respective one of said collars, the collars thereby decreasing the stress on the bar and the moment of inertia of the weight being lifted.

Abstract: To satisfy one or more of the foregoing objectives, embodiments of a spring collar are provided for removably securing a disc weight to the sleeve of a barbell. In one embodiment, the spring collar includes a resilient wire form having a permanent magnet mounted thereto. The spring collar includes a coiled body having a central aperture, and first and second radial arms extending from the coiled body. The first and second radial arms can be moved toward one another to increase the diameter of the central aperture and permit a user to slide the coiled body over the sleeve. The permanent magnet enables a user to removably secure the spring collar to a ferromagnetic surface when the spring collar is not in use.

Abstract: A dumbbell and incremental weight plate for same comprise a bar that extends generally axially between opposing end regions, a weight plate mass mounted about the bar at each end region, and at least one incremental weight plate mountable on the dumbbell. The weight plate mass and the incremental weight plate have respective magnetic regions that cause the incremental weight plate to be selectively magnetically secured to the weight plate mass or to be magnetically repelled from the weight plate mass to assist the user in removing the incremental weight plate from the dumbbell.

Abstract: An adjustable weightlifting device having selectable weights. The adjustable weightlifting device allows users to select a desired number of weight plates, and then couples the selected weight plates to retention members disposed in the handle of the device.

Abstract: A shaft-mounted clamp includes a pair of clamp members that are pivotably coupled to one another at one end, each clamp member including a through-hole for receiving the shaft to which the clamp is to be mounted. At least one of the clamp members includes a push rod that extends through the opposite clamp member, and which has a distal end portion that is contacted by an article supported on the shaft to increase the engagement of at least one of the clamp members on the shaft. A coupling device may be provided at one of the clamp members for suspending an article therefrom. The clamps may be readily repositioned along the shaft by squeezing the clamp members together (such as against the biasing force of a spring) to more closely align the through-holes with one another and thereby release the engagement of the clamp members with the shaft.

Abstract: A selectorized dumbbell comprises a plurality of nested weights which have front and rear arrays of rails with the rails being vertically spaced from one another with a space beneath each rail. A handle is insertable into a gap between stacks of nested left and right weight plates. A selector comprises front and rear pin arrays in each end of the handle with the pins in these arrays being selectively movable in a horizontal direction into extended positions located in the spaces beneath the rails for coupling different weights to the handle. The pins in the arrays are movable into their extended positions by a single vertically movable member carried on a vertically rotatable shaft in the handle end or by a plurality of independently movable members in the handle end that are moved by a plurality of keys carried on a top side of the handle end.

Abstract: An exercise apparatus includes a bar assembly and weight assemblies and can be used according to various methods of performing exercise routines using the apparatus. An exemplary exercise apparatus includes bar segments that are coupled together to create a bar assembly. Weight can be added to the bar assembly and the assembled device can be used to perform exercises that involve, for example, twisting and stretching.

Abstract: A weight plate having a detachable locking cartridge by which the weight plate is releasably connected to a lifting element (e.g., a center post) whereby one or more weight plates carried by the lifting element may be lifted by a user. The weight plate also has a plate body with a central bore in which to receive the lifting element. In one embodiment, the detachable locking cartridge is mounted flush against one side (e.g., the bottom) of the weight plate body so as to lie entirely external to the plate body. In an alternate embodiment, the detachable locking cartridge includes a stabilizer extension that is received within a cavity recessed in the one side of the plate body. The detachable locking cartridge includes a manually-accessible toggle lever switch arm that is adapted to rotate within a housing of the cartridge between locked and unlocked positions to thereby control the displacement of a locking pin relative to the lifting element within the central bore of the plate body.

Abstract: At least two dumbbells are releasably connected to the axial ends of a barbell. The dumbbells include a dumbbell connector portion positioned axially on a weight of the dumbbell, and the barbell includes a barbell connector portion on the axial ends of the barbell. The dumbbell connector portion engages the barbell connector portion to connect the dumbbell to the barbell. The dumbbell connector portion can be received in a recess of the weight. The user selects two dumbbells of a desired weight and connects the barbell with the dumbbells. The device is then utilized for exercise.

Abstract: A dumbbell assembly includes a tube, a rod rotatably received in the tube, and two rotary units respectively connected to two ends of the rod. Each rotary unit has a wing to which multiple weight members are connected. The rod is rotated relative to the tube and the wings together with the weight members are rotated to generate centrifugal forces which apply to the user's muscles.

Abstract: An adjustable weight kettlebell includes a weight lifting member that houses a vertical stack of weights. Shelves on the housing portion of the weight lifting member are rotatable into and out of underlying engagement with respective weights.

Abstract: Weight plate locking and lifting systems by which one or more weight plates are detachably connected to a lifting handle bar to enable the weight plates to be removed from or returned to a nearby storage rack without having to lift, transport and handle the weight plates. Each weight plate includes a toggle lever switch arm that is coupled to a locking pin. Each weight plate also includes a radially-extending locking cavity within which to removably receive the lifting handle bar. When the toggle lever switch arm is moved to a locked position, the locking pin slides in a first direction through the weight plate and into engagement with the lifting handle bar within the locking cavity. When the toggle lever switch arm is moved to an unlocked position, the locking pin slides in an opposite direction out of engagement with the lifting handle bar.

Abstract: An adjustable dumbbell includes a handle, a shaft rotatably engaged through the handle, a carrier attached to each end portion of the shaft and having an inner housing and an outer housing and one or more middle housings spaced from each other for forming two or more gaps between the housings and for engaging with weight members, and the inner housing and the middle housing each include a spring-biased projection extendible into the gaps for selectively latching the weight members to the handle and the shaft and the carrier, and a control device is rotatably engaged onto the shaft and coupled to the handle for actuating the spring-biased projections to latch the selected weight members to the handle and the shaft and the carrier.

Abstract: A shaft-mounted clamp includes a pair of clamp members that are pivotably coupled to one another at one end, each clamp member including a through-hole for receiving the shaft to which the clamp is to be mounted. At least one of the clamp members includes a push rod that extends through the opposite clamp member, and which has a distal end portion that is contacted by an article supported on the shaft to increase the engagement of at least one of the clamp members on the shaft. A coupling device may be provided at one of the clamp members for suspending an article therefrom. The clamps may be readily repositioned along the shaft by squeezing the clamp members together (such as against the biasing force of a spring) to more closely align the through-holes with one another and thereby release the engagement of the clamp members with the shaft.

Abstract: A selectorized dumbbell has nested stacks of left and right weight plates, a handle that can be disposed between the two stacks of weight plates, and a selector that couples selected numbers of the left and right weight plates to left and right planar ends of the handle. The handle has at least one loop type hand grip located above the ends of the handle and above the weight plates to allow the dumbbell to be used as a kettlebell. This loop type hand grip can be replaced with a bar type hand grip if the dumbbell is to be used like a standard dumbbell, or the handle can be provided in kettlebell or standard versions thereof. Alternatively, the loop type hand grip can be movably disposed on the handle for movement between operative and non-operative positions.

Abstract: An adjustable weightlifting device having selectable weights. The adjustable weightlifting device allows users to select a desired number of weight plates, and then couples the selected weight plates to retention members disposed in the handle of the device.

Abstract: A dumbbell is described including a handle having a grip and at least one end, an inner plate mounted on the handle adjacent the grip, in a fixed rotational orientation, a support plate rotationally mounted on the handle adjacent the inner plate, at least one collar rotationally mounted on the handle adjacent the support plate, and rotationally fixed with the support plate, a selector knob rotationally mounted on the handle adjacent the at least one collar, and rotationally fixed with the collar, a weight plate removably mounted on the handle adjacent the at least one collar, and a means for selectively securing the support plate to the inner plate to resist the rotation of the support plate, collar and selector knob with respect to the inner plate and handle.

Abstract: An exercise barbell that includes a first cylindrical bar having an open end slidably engageable with a second cylindrical bar, a first hinged coupler and second hinged coupler, the first hinged coupler and the second hinged coupler having a back plate and a front plate, and wherein the back plate is attached to the first cylindrical bar and the second cylindrical bar. The front plate is operatively connected to the back plate by a lower hinge pin, which forms a free weight handle support that may be locked by a fastener. The exercise barbell also has a first rotational point and second rotational point, the first and the second rotational points being operatively connected to the exercise barbell.

Abstract: An adjustable weight kettlebell includes a weight lifting member that rests on top of a vertical stack of weights. A weight selector is rotatable into and out of underlying engagement of the weight plates to secure a desired amount of mass to the weight lifting member.

Abstract: A weight lifting member is configured to accommodate a plurality of weights. A selector rod is movably mounted on the weight lifting member for rotation about an axis to selective engage and disengage a first subset of the weights, and for movement axially to selectively engage and disengage a second subset of the weights. A latch must be moved in order to release the selector rod for movement relative to the weight lifting member.

Abstract: An adjustable weight kettlebell includes a weight lifting member that rests on top of a vertical stack of weights. A weight selector is rotatable into and out of underlying engagement of the weight plates to secure a desired amount of mass to the weight lifting member.

Abstract: An exercise apparatus includes a pair of end cap assemblies, a plurality of disk assemblies and a plurality of weight assemblies. The plurality of disk assemblies and the plurality of weight assemblies are preferably secured between the end cap assemblies, in an alternating fashion. Each of the end cap assemblies also includes a handle that is preferably aligned in the same plane the handle of the other end cap assembly.

Abstract: A dumbbell has an optional number of weight discs which stand on end in a stand, and a handle with anchorages. The anchorages and the weight discs have connecting structures which, in the axial direction, interconnect the anchorages with a neighboring weigh disc or neighboring weight discs, respectively. On the other hand, the connecting structures permit movement transversely of the axial direction. The weight discs display locking structures, which, in the activated state in directions transversely of the axial direction, prevent mutual movements between the weight discs and the anchorages. The locking structures have locking bodies which are movable so that their directions of movement have an axial component and which are disposed at the peripheral regions of the weight discs, and also are insertable in corresponding recesses in a neighboring weight disc or an anchorage. The locking bodies are operable by an operating arrangement located inside the peripheral contour of the weight discs.

Abstract: A method of manufacturing an exercise device, includes the steps of providing a bar having an end portion; providing a collar for receiving the end portion; forming a weight section about the collar to form a weight assembly including a weight section and a collar; mounting the weight assembly on the end portion; providing a first securing member; and securing the weight assembly to the bar using the first securing member. The weight section is formed about the collar by casting.