Athena™ Side-Mount Functional Trainer Builder
*Not all attachments pictured are included. Read the configuration descriptions to see what is or is not included with each configuration.
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OVERVIEW
The Athena™ Side-Mount Functional Trainer is a low-profile cable attachment that integrates into the side of your PR-4000 or PR-5000 series power rack. Get the functionality of a functional trainer machine so you can build your body and get in accessory and isolation work, without needing space for a stand-alone unit. In addition, it provides a lower price point (and smaller footprint) than the Ares™ Attachment, which includes a lat pulldown and low row. The Athena™ features a 2:1 pulley ratio, which means 20lbs feels like 10lbs. Choose between a plate-loaded or selectorized version. The plate-loaded version features weight horns that have a loadable length of 10.6" each and a max weight capacity of 540lbs (feels like 270lbs). The selectorized version utilizes weight stacks, each stack weighing 170lbs per side (feels like 85lbs) with the option to upgrade each stack to 220lbs (feels like 110lbs). The weight stacks feature hot-rolled steel plates with a 3% tolerance and a magnetic pin for quick and easy weight changes. Add bands, on either version, to the integrated band pegs on the base and headplate for added resistance.
The Athena™ gives you the freedom to customize your rack's functionality by choosing either a left, right, or dual-sided setup. The patent-pending Athena™ features a trolley that allows you to do cable work at any height on the upright and is lined with special plastic to protect it. The oversized pop-pin makes it easy to adjust with one hand. The trolley includes a pin for added security while in use. The Athena's™ cables are made from high-quality, galvanized wire with a raw steel core. The pulleys are made from strong aluminum and the front pulleys have a 180-degree swivel for versatility when working outside the rack. The attachment comes with a urethane D Handle attachment and is compatible with a wide assortment of cable attachments.
Note: The Plate-Loaded Athena™ cannot clear weight horns loaded with any size diameter plates. See FAQ for alternative weight horn configurations. The selectorized Athena™ comes with six 2" spacers (per unit) for your rear storage weight horns. The weight stack cannot clear past standard 17.7" diameter plates without the use of the spacers.
PRODUCT DIMENSIONS
- Plate-Loaded
- Selectorized

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Weight87lbs (Per Unit)
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Pulley Ratio2:1
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Minimum Usable Weight7lbs (Per Unit)
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Max Weight Capacity540lbs (Feels like 270lbs)
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Weight Horn Loadable Length10.6" (Each Side)
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Cable Weight Capacity540lbs (Per Unit)
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Cable Travel93" Rack: 106" or 80" Rack: 82.8"
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Added Height1.8"
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Added Width12.3"
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Added Depth6.0" Front of Rack

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Weight258lbs (Per Unit)
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Weight Stack170lbs
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Pulley Ratio2:1
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Minimum Usable Weight10lbs (Per Unit)
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Cable Weight Capacity540lbs (Per Side and Feels like 270lbs)
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Cable Travel93" Rack: 106" or 80" Rack: 82.8"
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Weight Plate Tolerance3%
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Added Height1.8"
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Added WidthPR-4000: 3.7" or PR-5000: 5.0"
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Added Depth6.0" Front of Rack
PRODUCT FEATURES
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SPACE SAVING
Provides the functionality of a functional trainer machine in a low-profile rack attachment without the bulk of a freestanding unit or an Ares. -
PATENT-PENDING DESIGN
The light and smooth trolleys with a knurled handle and oversized pop-pin are easy to move with one hand, but strong enough to handle heavy weight. They're lined with a special plastic to protect your uprights. -
INTEGRATED BAND PEGS
The integrated band pegs on the base and headplate provide the option to create added resistance with bands up to a max weight capacity of 540lbs. -
ATTACHMENT VERSATILITY
Includes a urethane D Handle attachment (one per unit) and is compatible with a wide assortment of cable attachments. -
QUALITY PULLEYS AND CABLES
This attachment features high-quality cables made from galvanized wire with a raw steel core and strong aluminum pulleys. The front pulleys have a 180-degree swivel for versatility working outside the rack. -
CONVERTIBLE
A conversion kit will be available for people who want to transform their plate-loaded version to the selectorized version in the future.
MEDIA GALLERY
VIDEOS
- How We Built The Athena™ Side Mount Functional Trainer
How We Built The Athena™ Side Mount Functional Trainer
A close look at how to use the Athena™ and what makes it different than a stand-alone functional trainer.
STORIES
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The Athena™: The Best Side-Mount Functional Trainer for Your Gym
What is the Athena and what are the 4 different ways to incorporate it into your gym?
read full story -
How do I Choose a Cable Machine?
Not sure which cable machine is the best match for you? Here’s how they compare.
read full story -
What are all the Different Cable Attachments?
We asked a pro bodybuilder and coach to explain the benefits of the different cable attachments.
read full story
FAQS
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How do I distinguish between left-sided and right-sided orientation?
The left-sided and right-sided orientations are determined when facing the rack.
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Since the Plate-Loaded Athena™ can’t clear weight horns loaded with plates (of any size), how else can I store my weights?
- Place your weight horns on the back of your rear storage upright.
- Purchase an additional pair of uprights and a set of 30" crossmembers and build your weight storage out to the side. See Here
- Save space using the Wall Mounted Plate Storage.
- If space is not an issue, we offer many other off-the-rack weight plate storage options.
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On the selectorized version, will the weight stacks still clear the weight horns if I don't use the spacers?
The band peg on the weight stack cannot clear past standard 17.7” diameter plates without the use of the spacers. It can clear past smaller plates. The spacers also prevent you from pinching your fingers between the weight stack and the plates when loading onto the weight storage pins.
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Can I use this attachment in conjunction with the Lat Pulldown and Low Row Attachment?
Yes, but only if you purchase the Rear Base Stabilizer 2.0. The new RBS 2.0 mounts to the sides of the uprights instead of the rear. This allows the RBS 2.0 to not interfere with the stack or carriage that sits inside the 16" crossmembers. The RBS 2.0 also allows you to mount your safeties at a lower position.
If you have a 4-Post Athena™, you must mount the RBS 2.0 and lat pulldown and low row to the back uprights.
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Will I be able to transform the side-mount from plate-loaded to selectorized?
Yes. A conversion kit (coming soon) will provide the necessary components to turn your 4000 or 5000 series Side-Mount Functional Trainer attachment into the selectorized attachment. The selectorized attachment allows you to change the weight using a pin and weight stack instead of plates.
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Why would I purchase the Plate-loaded versus the Selectorized Athena™ Side-Mount Functional Trainer?
The Plate-Loaded Athena™ is ideal for the lifter looking for a lower-cost machine, owns a sizable plate collection, and is okay with creating an alternative weight storage solution to storing weights on the side of the rack.
The Selectorized Athena™ is ideal for people who want the magnetic pin for quick and easy weight changes, want to continue to use their existing weight storage system, and don’t own a large plate collection. Both have a max weight capacity of 540lbs. The Selectorized Athena™ can integrate bands to reach that max.
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Which power racks are compatible with the Side-Mount Functional Trainer Attachment?
Only the PR-4000 6-post and PR-5000 series power racks are compatible. For the PR-4000, you must have the updated 16” crossmembers with vertical holes. PR-5000 owners should verify they own the updated PR-5000 power rack, which has 1” holes along the upright, whereas the original has alternating 5/8” holes and 1” holes. The original was discontinued in 2020. The attachment is not compatible with the discontinued version.
The Athena™ is not compatible with any flat-footed rack configuration: OMNI, Apollo, or the original HR-5000.
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Are crossmembers included with my purchase?
This depends on which configuration you choose. There are configuration descriptions to see what is or is not included with each configuration. For the PR-4000, you will need to upgrade the 16” crossmembers if the ones you currently own don't have vertical holes.
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Do you have to order the same attachment height as rack height?
Yes. If you order an 80” rack, the 93” attachment will not be compatible. Vice versa, if you order a 93” rack, the 80” attachment will not be compatible.
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How much does this add to the footprint of my rack?
The Plate-Loaded Athena™ attachment adds 7.9” of depth to the front of your rack (trolley), 1.8” of height (top pulleys), and 12.3” of width per side (weight horns). The Selectorized Athena™ adds 7.9” of depth to the front of your rack (trolley), 1.8” of height (top pulleys), and either 3.7” (PR-4000 bottom band peg) or 5.0” (PR-5000 trolley handle) of width.
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What is the cable travel?
The cable travel is 82.8” for the 80” attachment and 106” for the 93” attachment.
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What is the lowest weight setting?
The lowest usable weight for the plate-loaded version is 7lbs (empty carriage). The lowest usable weight setting on the selectorized version is 10lbs.
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Will this work on a non-REP rack?
We cannot guarantee compatibility due to machining/manufacturing differences between companies.
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How does the Athena™ ship?
The Athena™ will ship ground or freight depending on quantity purchased (left, right, or dual-sided) or if the unit(s) are purchased in conjunction with other large/heavy items.
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What is the warranty information?
Structural welds on attachments and frames have a lifetime warranty. Pop-pins, pulleys, bearings, and cables have a one-year warranty.
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Is this compatible with the Multi-Grip Pull-Up Bar?
Yes, but there will be rubbing with the cables.