The Infinity Arm 2.0

Product Specs

1. There are 3 Bracket Arm Pivot Positions: Top, Middle & Bottom
2. There are 8 Adjustable Arm positions in an arc
3. There are 18 Support Pad Positions
4. The Infinity Arm also folds down (or up) to take up less room and can also be easily removed
5. The Infinity Arm comes in All Black

• All pins requiured for the device come with the unit
• Rack Attachment: 8 x 3-7/8 x 8
• For 5/8" and 1" squat rack hole diameter size
• Fits 3" x 3" Racks and 2” x 3” Racks (will only attach on the 3-inch side)
• We also have UHMW for the Infinity Arm to fit 2x2 racks *Add the 2x2 UHMW product to your cart to fit your 2x2 Rack*
• The Chest Support Attachment is 25" long (end of the pad to end of arm attachment)
• The distance of the arm from the rack to the end of the pad is 28 inches
• The Support Pad is 12 x 9 x 3 (in the center)
• Weight -  29 lbs
• Weight Capacity - 600lbs / 270kg
• See all the attachment options above
• The Support Pad will be black.

Install Instructions

List of potential Exercises

Chest

• Dumbbell Press
• Incline Dumbbell Press - 10 different angles
• Dumbbell Flyes
• Incline Dumbbell Flyes - 10 different angles
• Incline Push-Ups
• Decline Push-Ups
• Unilateral Dumbbell Press
• Unilateral Incline Dumbbell Press
• Unilateral Flyes
• Unilateral Incline Flyes - 10 different angles

Back

• Dumbbell Rows
• Seal Rows
• One-Arm Row
• Unilateral Row
• Pullovers
• Pendlay Rows
• Renegade Rows (with feet on pad)

If you attach to a cable system

• Pulldowns (it works as a seat)
• Reverse Cable Pulldowns
• Unilateral Pulldowns
• Low Cable Rows
• Reverse Hyperextensions

Shoulders

• Strict Back Supported Military Press (barbell)
• Strict Back Supported Military Press (dumbbell)
• Seated Dumbbell Press
• Front Raises
• Incline Front Raises - multiple angles
• Unilateral Dumbbell Press
• Back Supported Lateral Raises
• Prone Lateral Raises
• Incline Lateral Raises - multiple angles
• Unilateral Lateral Raises
• Side-Leaning Lateral Raises
• Seated Lateral Raises
• Back Supported Upright Rows
• Bent-Over Raises
• Dumbbell Rear Raises
• Dumbbell Facepulls

Triceps

• Tricep Kickbacks
• Unilateral Kickbacks
• Back Supported Overhead Tricep Extensions
• Back Supported Unilateral OH Extension
• Incline Cross-Over Extensions
• Incline Close-Grip Dumbbell Press
• Close-Grip Dumbbell Press
• Dumbbell Skull Crushers

Biceps

• Strict Dumbbell Curls
• Strict Hammer Dumbbell Curls
• Congdon Curls
• Dumbbell Cross Curls
• Dumbbell Hammer Cross Curls
• Spider Curls
• Spider Hammer Curls
• Isolation Curls
• Seated Dumbbell Curls
• Seated Hammer Curls

Lower body

• Hip Thrusts
• Hip Raises
• Unilateral Hip Raises
• Hip Bridges
• Step Ups

RACK COMPATIBILITY

We pulled these specs straight from the rack manufacturers’ websites—so while we’ve done our homework, we can’t promise every single spec. This list doesn’t include every rack out there, it is not an exhaustive list, but if yours isn’t shown, don’t sweat it—chances are, the Infinity Arm will still fit like a glove… or at least like a well-worn lifting strap.

Quick rule of thumb:

If your uprights are 3x3” (or 75mm), 2x3”, or 2x2” (or 50mm)with standard hole spacing, you’re probably good to go. Our Infinity Arm will attach to 1-inch, 2-inch, 4-inch and 6-inch on-center hole spacing.

If your rack is some oddball size or thicker than 3x3”, it’s likely not compatible—unless you’re ready to get crafty with some shims, which we don’t supply or if you got a buddy with a 3D printer.

Also keep in mind—this compatibility list is for our Infinity Arm, so double-check your upright size before you hit “add to cart”—because size does matter.

• American Barbell Power Racks | 3"x3" 
• Bells of Steel Hydra Series | 3"x3" 
• Bells of Steel Power Rack 4.1 | 2"x3" 
• Bells of Steel Utility Power Rack | 2"x3" 
• Bells of Steel Power Rack 5.1 | 2"x3" 
• Bells of Steel The Brute Rack | 2"x3" 
• PRX Profile One | 2"x3" 
• PRX Build Limitless | 3"x3" 
• Rep PR-5000 | 3"x3" 
• Rep Omni | 3"x3" 
• Rep Apollo Half Rack | 3"x3" 
• Rep PR-4000 | 3"x3" 
• Rep PR-1050 | 2"x2" 
• Rep PR-1000 | 2"x2" 
• Rogue Monster | 3"x3" 
• Rogue Infinity Series | 2"x3" 
• Rogue Monster Lite | 3"x3" 
• Sorinex Power Racks | 3"x3" 
• Titan T-2 | 2"x2" 
• Titan T-3 | 2"x3" 
• Titan X-3 | 3"x3" 
• Titan Series Power Rack | 3"x3" 
• Titan Series 24 | 3"x3" 
• Valor BD Series

This list doesn’t cover every rack on the planet—just the ones we’ve wrangled into the lineup so far, or been asked about. If yours isn’t listed, don’t panic. Odds are it’ll still play nice with the Infinity Arm… you’ll just need to check the specs and make sure your rack isn’t out here trying to be “special.”

*This Rack Will not fit on a Major Fitness B52 Model

This device is built to be tight to your rack.

1. You can attach it coming out to the side of your rack using the front of the post holes with the 5/8-inch or 1-inch versions.

2. You can attach it to the inside of the rack as this device has top and bottom holes that are 6-inch on-center holes, standard for most racks.

RACK COMPATIBILITY

We pulled these specs straight from the rack manufacturers’ websites—so while we’ve done our homework, we can’t promise every single spec. This list doesn’t include every rack out there, it is not an exhaustive list, but if yours isn’t shown, don’t sweat it—chances are, the Infinity Arm will still fit like a glove… or at least like a well-worn lifting strap.

Quick rule of thumb:

If your uprights are 3x3” (or 75mm), 2x3”, or 2x2” (or 50mm)with standard hole spacing, you’re probably good to go. Our Infinity Arm will attach to 1-inch, 2-inch, 4-inch and 6-inch on-center hole spacing.

If your rack is some oddball size or thicker than 3x3”, it’s likely not compatible—unless you’re ready to get crafty with some shims, which we don’t supply or if you got a buddy with a 3D printer.

Also keep in mind—this compatibility list is for our Infinity Arm, so double-check your upright size before you hit “add to cart”—because size does matter.

• American Barbell Power Racks | 3"x3" 
• Bells of Steel Hydra Series | 3"x3" 
• Bells of Steel Power Rack 4.1 | 2"x3" 
• Bells of Steel Utility Power Rack | 2"x3" 
• Bells of Steel Power Rack 5.1 | 2"x3" 
• Bells of Steel The Brute Rack | 2"x3" 
• PRX Profile One | 2"x3" 
• PRX Build Limitless | 3"x3" 
• Rep PR-5000 | 3"x3" 
• Rep Omni | 3"x3" 
• Rep Apollo Half Rack | 3"x3" 
• Rep PR-4000 | 3"x3" 
• Rep PR-1050 | 2"x2" 
• Rep PR-1000 | 2"x2" 
• Rogue Monster | 3"x3" 
• Rogue Infinity Series | 2"x3" 
• Rogue Monster Lite | 3"x3" 
• Sorinex Power Racks | 3"x3" 
• Titan T-2 | 2"x2" 
• Titan T-3 | 2"x3" 
• Titan X-3 | 3"x3" 
• Titan Series Power Rack | 3"x3" 
• Titan Series 24 | 3"x3" 
• Valor BD Series

This list doesn’t cover every rack on the planet—just the ones we’ve wrangled into the lineup so far, or been asked about. If yours isn’t listed, don’t panic. Odds are it’ll still play nice with the Infinity Arm… you’ll just need to check the specs and make sure your rack isn’t out here trying to be “special.”

*This Rack Will not fit on a Major Fitness B52 Model

In-stock products will ship out 3 - 5 business days after purchase.

Any Pre-order products will ship out once landed in our facility. Pre-order timelines will be clearly outlined in descriptions.

Infinity Arm 2.0 FAQ

What makes the Infinity Arm 2.0 different from other rack attachments?

Most rack attachments perform one specific job. The Infinity Arm 2.0 creates an adjustable support platform for chest-supported, back-supported, head-supported, arm-supported, seated, and lower-body exercises.

Its combination of three bracket pivot positions, eight arm angles, 18 support-pad positions, reversible mounting, and adjustable rack height allows one attachment to replace several single-purpose accessories.

It does not simply add another exercise to your rack. It changes what your entire rack can do.

Is the Infinity Arm 2.0 the most versatile rack-mounted support attachment available?

We designed it to be exactly that.

The Infinity Arm 2.0 combines:

• Three bracket pivot positions
• Eight adjustable arm positions
• 18 support-pad positions
• Adjustable placement anywhere along a compatible rack upright
• Forward- and reverse-facing configurations
• Chest, back, head, arm, and lower-body support
• Compatibility with dumbbells, barbells, kettlebells, cables, and landmine exercises

That range of adjustment allows one compact attachment to support dozens of exercises across nearly every major muscle group. Few rack attachments provide this many positioning options or serve this many different training purposes.

What problems does the Infinity Arm 2.0 solve?

Many exercises require support at an exact height or angle. A traditional bench may be too wide, too low, too long, or obstructive. Lifters often compensate with awkward bench placements, improvised padding, or additional single-purpose equipment.

The Infinity Arm 2.0 mounts directly to your rack and allows you to position its support pad where the movement—and your body—actually need it.

That can produce a more stable setup, reduce unwanted momentum, improve exercise positioning, and make previously awkward movements easier to perform.

How adjustable is the Infinity Arm 2.0?

The Infinity Arm 2.0 provides multiple layers of adjustment:

• Three bracket pivot positions: top, middle, and bottom
• Eight arm positions through its adjustment arc
• 18 individual support-pad positions
• Multiple mounting heights along the rack upright
• Forward- or reverse-facing configurations

These adjustments can be combined to create an extensive range of heights, angles, and pad orientations. This allows lifters of different sizes to customize the attachment for different exercises instead of adapting every movement to a fixed pad.

Why does manual adjustability matter?

Manual adjustment gives you direct control over the support height, arm angle, pad position, and orientation without relying on motors, cables, or complicated mechanisms.

The pin-secured design is straightforward, dependable, and easy to customize between exercises. More importantly, the Infinity Arm’s multiple adjustment points let you make meaningful changes to the setup instead of settling for only one or two fixed positions.

What types of exercises can I perform with the Infinity Arm 2.0?

The Infinity Arm 2.0 can support dozens of upper-body, lower-body, cable, landmine, and isolation exercises, including:

• Chest-supported dumbbell rows
• Seal rows
• One-arm rows
• Head-supported barbell rows
• Dumbbell presses and flyes
• Incline presses at multiple angles
• Strict back-supported shoulder presses
• Prone and supported lateral raises
• Rear-delt raises
• Spider curls
• Strict back-supported curls
• Triceps kickbacks
• Overhead triceps extensions
• Hip thrusts
• Hip bridges
• Step-ups
• Cable pulldowns
• Seated cable rows
• Reverse hyperextensions

The exact exercises available will depend on your rack configuration, available space, and the equipment used with the Infinity Arm.

Can it be used for chest-supported rows?

Yes. Chest-supported rowing is one of the Infinity Arm’s strongest applications.

You can adjust the rack height, arm angle, and pad position to accommodate dumbbell rows, seal rows, single-arm rows, landmine rows, rear-delt raises, and other supported pulling movements.

The pad helps stabilize your torso, reduce unwanted momentum, and place more emphasis on the back muscles being trained.

Can the Infinity Arm provide head support during rows?

Yes. The pad can be positioned to support your forehead during bent-over rows, rear-delt movements, and other exercises where maintaining a stable torso position can be difficult.

Head support can help you maintain positioning without turning the Infinity Arm into a full chest support. Always use an appropriate pad angle and avoid placing excessive pressure on your head or neck.

Can it be used as a back support?

Yes. The Infinity Arm can provide back support for strict presses, curls, lateral raises, upright rows, overhead triceps extensions, and other seated or standing exercises.

Supporting the back can reduce momentum and make it harder to turn an isolation exercise into an accidental full-body event.

Can it be used for arm-supported exercises?

Yes. The smaller adjustable pad can be positioned to support one or both arms during curls, triceps movements, lateral raises, and other isolation exercises.

Because the attachment mounts at different rack heights and offers 18 pad positions, you can create multiple support angles without needing a separate preacher curl bench or fixed arm-support station.

Can I use the Infinity Arm as an incline pressing platform?

Yes. The combination of adjustable rack height, three pivot positions, eight arm angles, and 18 pad positions allows you to create multiple pressing and flye angles.

It can be used for bilateral or unilateral dumbbell presses, incline flyes, supported single-arm presses, and other movements where a full-size bench may be unnecessary or restrictive.

Make sure the pad and every pin are completely secured before beginning the exercise.

Can the Infinity Arm be used with a cable system?

Yes. Depending on your rack and cable configuration, the Infinity Arm can function as a seat, back support, chest support, arm support, or positioning platform for cable exercises.

Potential movements include:

• Cable pulldowns
• Low cable rows
• Unilateral pulldowns
• Reverse cable pulldowns
• Cable curls
• Cable triceps exercises
• Supported cable lateral raises
• Reverse hyperextensions

The Infinity Arm does not include a cable system, and compatibility will depend on the location and travel path of your cable.

Can it be used with landmine exercises?

Yes. The Infinity Arm can be paired with landmine training to provide chest, back, head, or arm support during rows, presses, lateral raises, and other landmine movements.

Pairing it with the Edge Landmine Bar creates even more exercise and positioning options within the Exponent Edge training ecosystem.

What types of resistance can I use with it?

The Infinity Arm is not limited to one type of resistance. Depending on the exercise and setup, it can be used with:

• Dumbbells
• Kettlebells
• Barbells
• Landmine bars
• Cable systems
• Resistance bands
• Bodyweight movements

That flexibility is a major reason the Infinity Arm can replace several more specialized pieces of equipment.

Can it be used for lower-body exercises?

Yes. The Infinity Arm can provide support for hip thrusts, hip raises, unilateral hip raises, hip bridges, step-ups, and other lower-body movements.

Its adjustable height and pad angle let you build the setup around the movement instead of balancing a loose bench in an inconvenient position.

Exercise suitability will depend on your rack’s stability and how the Infinity Arm is mounted.

What is the Infinity Arm 2.0’s weight capacity?

The Infinity Arm 2.0 has a maximum rated capacity of 600 pounds when properly installed on a compatible and adequately secured rack.

The actual usable load also depends on the exercise, load direction, mounting position, rack construction, and rack anchoring. Always inspect the setup and confirm that every pin is fully secured before applying weight.

What rack sizes are compatible with the Infinity Arm 2.0?

The Infinity Arm 2.0 is designed for:

• 3 × 3-inch rack uprights
• 2 × 3-inch rack uprights, mounted on the 3-inch side
• 2 × 2-inch uprights when the optional 2 × 2 UHMW adapter is purchased

Versions are available for racks with either 1-inch or 5/8-inch holes. The attachment accommodates common 1-, 2-, 4-, and 6-inch on-center hole spacing.

It is not designed for uprights larger than 3 × 3 inches and is not compatible with the Major Fitness B52.

Will the Infinity Arm fit a metric 75 mm rack?

It may fit many 75 mm uprights, but metric rack dimensions can differ slightly from true 3 × 3-inch measurements. Hole size, hole spacing, upright thickness, and coating can also affect compatibility.

Before ordering, compare your rack’s exact measurements with the Infinity Arm specifications. If you are unsure, contact Exponent Edge with your rack brand, model, upright dimensions, hole diameter, and hole spacing.

How do I know whether to order the 1-inch or 5/8-inch version?

Measure the diameter of the attachment holes in your rack upright:

• Choose the 1-inch version for racks with 1-inch holes.
• Choose the 5/8-inch version for racks with 5/8-inch holes.

Do not select the size based only on the outside dimensions of the upright. Rack size and hole diameter are separate measurements.

Can the Infinity Arm mount inside or outside my rack?

Yes. Depending on your rack and available space, the Infinity Arm can be mounted in multiple ways.

It can extend outward from the side of an upright using the front-facing holes. It can also be installed within certain racks using the top and bottom mounting holes, which are spaced six inches on center.

Because rack construction varies, confirm that the chosen position allows sufficient clearance and does not interfere with crossmembers, weight storage, safety arms, or other attachments.

Does the Infinity Arm include the necessary pins?

Yes. All magnetic pins required to install, adjust, and use the Infinity Arm 2.0 are included.

Always confirm that each pin passes completely through the intended holes and is properly seated before placing weight on the attachment.

Is the Infinity Arm difficult to adjust?

No. The pin-secured design allows you to reposition the bracket, arm, and support pad without complicated tools.

With so many possible configurations, there may be a short learning period while you find your preferred settings. Once you identify them, recording the rack height and adjustment positions makes it easier to recreate the same setup during future workouts.

Can I move the Infinity Arm out of the way without removing it?

Yes. The arm can fold up or down against the rack to reduce the space it occupies. It can also be removed when you need the entire rack area for squats, presses, or other exercises.

This gives you the functionality of a substantial support station without permanently surrendering part of your gym to another machine.

How large and heavy is the Infinity Arm 2.0?

The Infinity Arm 2.0 weighs approximately 29 pounds. The distance from the rack to the end of the pad is approximately 28 inches.

The support pad measures approximately 12 × 9 × 3 inches at its center, and the chest-support assembly measures approximately 25 inches from the end of the pad to the end of the arm attachment.

It is substantial enough to provide serious support while remaining removable and compact enough for a home or garage gym.

Is the Infinity Arm only useful for home gyms?

No. It is particularly valuable in home gyms because it expands training options without requiring another large machine, but its versatility can also benefit personal-training studios, athletic facilities, physical-preparation spaces, and commercial gyms.

Any facility trying to create more exercise options from its existing rack can benefit from it.

Does the Infinity Arm replace an adjustable bench?

It can replace a traditional bench for many supported dumbbell, cable, isolation, and accessory exercises, but it is not intended to replace a full bench in every situation.

Its advantage is that it can accomplish things a conventional bench often cannot: attach directly to the rack, adjust vertically along the upright, reverse direction, provide targeted support, and move out of the way when finished.

For maximum training versatility, the Infinity Arm and a traditional adjustable bench can complement each other.

We stand behind the quality of our equipment and want you to have confidence in your purchase. All bench and Infinity Arm padding is covered under a 90-day limited warranty from the date of delivery.

What’s Covered:

• Defects in materials or workmanship in the fabric, stitching, or padding.
• Premature breakdown of padding under normal, intended use.

What’s Not Covered:

• Normal wear and tear from regular use, including cosmetic changes such as scuffs, scratches, fading, or minor surface marks.
• Damage caused by misuse, abuse, neglect, improper storage, or failure to follow care instructions.
• Modifications or repairs made by anyone other than Exponent Edge or its authorized service providers.

How It Works:
If you believe your bench or Infinity Arm padding has a defect within the warranty period, contact our customer service team with your proof of purchase, photos of the issue, and a description of how it occurred. Once verified, we’ll arrange for repair, replacement, or an appropriate solution at our discretion. Please see Refund Policy for more details.