ADD-ON
The Underworld is made up of all new, but second-quality pieces of REP equipment that have minor aesthetic flaws. Although these products may have slight imperfections to their finish or design, they are all unused, functional, and arrive ready to be used in your home or commercial gym. The Underworld features an ever changing, wide range of gym equipment, including our clearance barbell line, Death Valley. The Death Valley bars fall slightly short of REP’s exceedingly high standards for manufacturing due to minor cosmetic issues, such as inconsistencies with the knurling or finish blemishes on the bar or sleeves. Still, even these perfectly imperfect picks exceed the standards of most other gym equipment companies’ top-of-the-line products. Minor defects or slight inconsistencies you’ll see in the Underworld might be overlooked by other manufacturers. But instead, we offer this gear to you at a reduced rate. These barbells feature a distinctive "Death Valley" end cap that clearly marks this line.
The Double Black Diamond Power Bar is REP’s top-tier powerlifting barbell with ultra-aggressive knurling inspired by Colorado’s toughest slopes. Weighing 20kg (44.1lb), it features deep, mountain-style knurling for maximum grip and center knurling for stability. The 29mm diameter meets IPF standards and supports up to 1,500lbs, with bronze bushings for smooth rotation. Available in stainless steel, stainless with chrome sleeves, or Cerakote finishes with Duracoat® for enhanced durability and corrosion resistance, this bar also has distinctive metal endcaps. For more information on this barbell, check out the Double Black Diamond Bar listing.
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Bar UsePowerlifting
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Weight20kg (44.1lbs)
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Length86.6"
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Loadable Sleeve Length16.3"
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Shaft Diameter29mm
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Sleeve Diameter50mm
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Bushing/BearingBronze Bushings
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Sleeve StyleSmooth
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Knurl StyleDeep Mountain/Very Aggressive
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Center KnurlYes
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Knurl MarkingsIPF
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MaterialSteel or Stainless Steel
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Shaft CoatingCerakote or None (Stainless Steel)
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Sleeve CoatingDuracoat®, Hard Chrome, or None (Stainless Steel)
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WhipLow
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Static Rating1,500lbs
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Tensile Strength200ksi
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Tolerance1%
BLOGS
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Save Money on Fitness Equipment and Gear With the Underworld
Welcome to the Underworld.
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Barbell Comparison Guide: How to Pick the Best Barbell
A barbell is a barbell, right? Not exactly.
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Choosing the Right Barbell: Different Types of Barbells for Different Types of Lifts
What's the difference between a powerlifting, weightlifting, mixed-use, and specialty bar?
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What are the Different Barbell Finishes?
Finish strong! Here’s a closer look at the different barbell finishes, in order from the most basic to the highest end.
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More Than You Ever Wanted to Know About Barbell Knurling
You’ve noticed different barbells feel different in your hands. So, what’s the deal?
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11 Rules of Barbell Etiquette
Treat your barbell right, and she'll love you back. You don't want to learn these rules the hard way.
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What We Learned Deadlifting with Strongman Rob Kearney
Deadlifting advice courtesy of the world's strongest man, pound for pound.
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The Underworld is made up of all new but second-quality pieces of REP equipment that have minor aesthetic flaws. Although these products may have slight imperfections to their finish or design, they are all unused, functional, and arrive ready to be used in your home or commercial gym.
Death Valley is the name of our clearance barbell line. These barbells feature a distinctive "Death Valley" end cap that clearly marks this line.
The Double Black Diamond Bar will be very similar to what is shown on the website; however, this item falls slightly short of REP’s exceedingly high standards for manufacturing. These bars may have inconsistencies with the knurling, or blemishes on the bar or sleeves. Still, even these perfectly imperfect picks exceed the standards of most other gym equipment companies’ top-of-the-line products. There will be minor defects or slight inconsistencies, so the product is offered to you at a reduced rate.
No. All Underworld products are temporary, clearance items and therefore sales are final.
Equipment from the Underworld is not covered by warranty.
Underworld items can be shipped for free in the lower 48 states or are available for local pickup. If you live in California or Pennsylvania and the specific item you want is in your local showroom, you're welcome to request to check it out in person before purchasing it.
Yes, these purchases can be ordered for local pick up if you live near one of REP’s two US showrooms. They are eligible for a local pickup discount.
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
