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Fat Bar - Olympic Curl Bar Cable Attachment

4.9
Rated 4.9 out of 5 stars
37 Reviews
$139.99 AUD

Build your arms & grip with this 2-in-1 cable attachment & curl bar!
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Specifications

Shipping & Returns

We get it — shipping heavy gym gear raises some important questions. Here’s exactly what to expect:

Flat-Rate Shipping: Most orders ship for much less, but no matter how big your setup gets, you’ll never pay over $199 AUD for shipping in Australia. Some conditions apply for remote or island addresses.

Shipping Time: Orders ship within 1–3 business days and usually arrive within 3–7 business days (during sales events, delivery may take up to 2 additional business days).

Fulfilled from our Melbourne warehouse. Local to Melbourne? Pick up in-store and skip the shipping fees!

Returns: All Bells of Steel products are backed by our 30-day return policy. If you don’t love your order, send it back — simple and stress-free.

Product Features

  • 2-IN-1 ATTACHMENT & BAR

    Use this fat bar as an attachment on your cable machine to inject variety into your tricep pushdowns & bicep curls. It also doubles as a fat grip EZ curl bar, so you can annihilate your arms to oblivion with EZ curls, skull crushers and more.

  • BUILD GORILLA-LIKE GRIP

    The thicker diameter is harder to hold, so your fingers, hands, and forearms are forced to work harder and get stronger. The result: thicker forearms and a step closer to tearing phonebooks in half.

  • SAFER & SMOOTHER REPS

    The independently rotating eyelet allows for smooth, natural movement — without you needing to loosen your grip. This way, you’ll never have to worry about inertia straining your wrists or elbows and causing injury.

Product Details

Improve the definition and strength of your arms & forearms with this 2-in-1 fat bar attachment!
Whether you’re into grappling sports, arm wrestling, or just want to build your grip strength, fat bar attachments are a game-changer. Their unique design builds your grip in ways that typical cable attachments can’t match.
But, this fat bar attachment also doubles as an EZ curl bar! Load up your Olympic weight plates to work your arms on EZ curls, skull crushers & more, while simultaneously sending your forearms into overdrive.
Compatible with any cable machine using a carabiner, and features a rotating connection point to ensure buttery-smooth reps. 
IMPORTANT: Requires a carabiner (not included by default) for use on your cable machine.

PRODUCT SPECS

Shipping Details

This product will be shipped in 1 box:


1x CURL-FAT2

  • 46" x 6" x 4" / 118 cm x 15 cm x 9 cm
  • 17 lb / 8 kg

You can find the SKU on the front of each box.

4.9
Rated 4.9 out of 5 stars
Based on 37 reviews
Total 5 star reviews: 34 Total 4 star reviews: 3 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
100%would recommend this product
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37 reviews
  • M
    Mike
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    4 months ago
    Absolutely amazing!

    Best most comfortable ez bar curls ever! Looking forward to press downs later this week.

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    Bells of Steel Canada
    4 months ago

    Thanks for the glowing review and the fantastic photo, Mike! We're pumped to hear you're enjoying those comfortable EZ bar curls with the Fat Bar - Olympic Curl Bar Cable Attachment. It's got us feeling like it's PR day! Can't wait for you to crush those press downs later in the week — keep up the awesome work!

    Yours in strength,
    The B.o.S. Crew

  • BD
    Bill D.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    6 months ago
    Excellent

    I like the fat bar, both for hand comfort and grip training. I also like the fact that it can be used both as a barbell and as a cable attachment (though I don't have a cable machine yet) -- versatility is always appreciated for the home gym with limited space. My only complaint is that the cable attachment point can move around when using it as a barbell (think about a piece of metal rotating toward your face when doing skull crushers). It would be nice if you could lock the attachment point in place or retract it when not using with a cable. I've found that wrapping a #94 rubber band across the gap of the attachment point does a good job of keeping it from moving (see photo).

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  • CN
    Christopher N.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    11 months ago
    A MUST HAVE

    First of all, Shipping was unexpectedly fast. It was mentioned that the item was going to be shipped at the end of January but came 2 days after my birthday on January 10th. Back to the main topic. The equipment is very much needed, especially if it's arms and/or back day. Versatile and sturdy when doing varies workout.

    LIST OF WORKOUTS (WITHOUT THE USE OF THE CABLE)

    1. SKULL CRASHERS - 2. CURLS - 3. TRICEPS - 4. LUNGES - 5. SHRUGS - 6. BENT OVER LAT PULL - 7. OVERHEAD TRICEPS - 8. FRONT RAISES

    LIST OF WORKOUTS (WITH THE USE OF THE CABLE)

    1. OVERHEAD CURL - 2. CURLS - 3. LAT PULLDOWN (FRONT/BACK) - 4. SEAT CURL - 5. FRONT RAISES - 6. BENT OVER REVERSE RAISES - 6. ZERCHER SQUAT - 7. LUNGES

    ....WHATEVER YOU COULD IMAGINE.

    Was this helpful?
    Bells of Steel Canada
    11 months ago

    Thanks a million for the stellar review and the fantastic photos, Christopher! We're pumped that the Fat Bar Olympic Curl Bar Cable Attachment got to you in lightning speed, right after your birthday no less – talk about a perfect belated gift! From skull crushers to zercher squats and everything in between, it sounds like this bar is stealing the spotlight in your workouts. Here's to endless possibilities and keeping those workouts as versatile and sturdy as the gear itself!
    Yours in strength,
    The B.o.S. Crew

  • S
    Seth
    Verified Buyer
    I recommend this product
    Rated 4 out of 5 stars
    4 weeks ago
    Flawed, but MUCH improved since the original round of review videos.

    The BOS Fat Bar - Olympic Curl Bar Cable Attachment is far from perfect, but it does a few things uniquely well, and is far improved since the original reviews. The initial reviews trashed the weak knurl and the ugly welds. Both are still a bit crude, but IMO the knurling is a deep medium bordering on rough/sharp, and the welds are clearly hand made but very competent and well cleaned up after. In 2025 neither are the glaring problems that plagued the original review units.

    The thick bar, aggressively angled tubing and knurling make a few exercises work amazingly well with this curl bar. Narrow Grip Cable Curls, cable Lat Prayers, and cable Narrow Grip Tricep Pushdowns are all fantastic. These movements alone make my purchase worth while. As a bonus Lat Pulldowns and Wide Grip Cable Curls are all pretty solid, though I still prefer these movements with a few other cable attachments.

    Unfortunately for cable work in a rack, the Fat Curl Bar is just a few inches too wide to set down. The Olympic Plate Collars hit both sides of the rack Crossmembers, but only just brush the sides of my J Hooks. It's not quite wide enough to be rackable safely, but it's not narrow enough to set on the ground either. So it's just kinda awkward to rest between sets no matter what you do with it. My other criticism is that the Olympic weight collars do not spin, so free weight curls dont feel great. They work, but they puts extra torque on your wrists, and I'm less likely to use this…

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  • B
    Bernard
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    2 months ago
    Vraiment incroyable

    Je possède plusieurs barre et et poigner de plusieurs marque différentes....Cette barre est l une de mais preferer...multifonctionnel et la poigne de 2 pouce est vraiment intéressante!!!

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A black Fat Bar—Olympic Curl Bar Cable Attachment by Bells of Steel, featuring silver-colored ends and multiple lobes for enhanced robustness and grip strength, is placed diagonally on a white background, resembling an EZ curl bar.
Bells of Steel

Fat Bar - Olympic Curl Bar Cable Attachment

$139.99 AUD
Improve the definition and strength of your arms & forearms with this 2-in-1 fat bar attachment!
Whether you’re into grappling sports, arm wrestling, or just want to build your grip strength, fat bar attachments are a game-changer. Their unique design builds your grip in ways that typical cable attachments can’t match.
But, this fat bar attachment also doubles as an EZ curl bar! Load up your Olympic weight plates to work your arms on EZ curls, skull crushers & more, while simultaneously sending your forearms into overdrive.
Compatible with any cable machine using a carabiner, and features a rotating connection point to ensure buttery-smooth reps. 
IMPORTANT: Requires a carabiner (not included by default) for use on your cable machine.
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