Flat Sandwich J-Cups 2.0

Flat Sandwich J-Cups 2.0

Fully protect the knurling on your barbell with the versatile, heavy-duty Flat Sandwich J-cups 2.0. These cups, which are compatible with 4000 and 5000 Series power racks, are finished in a durable, metallic black powder coat that is incredibly resistant to chips and rust. The 2.0 version brings an elevated finish to your power rack, with high-end details like a laser-cut, metallic black REP logo plate with a stainless-steel backing – the reverse of the original design for an extra pop.

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Flat Sandwich J-Cups 2.0 Reviews

Based on 12 reviews from Gym Radar users, the REP Fitness Flat Sandwich J-Cups 2.0 have an average rating of 4.75 out of 5. They're currently the #2 most-owned J-Cups on Gym Radar, with 71 home gyms reporting ownership.

12 Reviews

4.75 / 5
Performance
4.75 / 5
Build Quality
4.83 / 5
Value
4.67 / 5

User Reviews

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Garage Gym Collective
Garage Gym Collective's Gym
243 reviews
2034 points
(4.00)
8/11/2026
Overall a solid set of jcups. Definitely better options out there, but these are affordable and work well.
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Value
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IronCaveSHG
IronCave
43 reviews
544 points
(4.33)
6/16/2026
They’re well built and do a great job protecting both the bar and the rack. The flat sandwich design feels secure and holds the bar steady without any issues. A simple upgrade, but a noticeable one that helps in keeping equipment in good shape.
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Powerlifting Cat
DNL Gym
77 reviews
1151 points
(5.00)
4/5/2026
Nice j-cups and I painted mine. There are probably a lot of better options but solid for the price
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Big Mark
Eddington's Gym
489 reviews
4420 points
(5.00)
3/7/2026
REP Fitness Flat Sandwich J-Cups 2.0 are great and work exceptionally well.
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Big Thomas B
Big Thomas B's Gym
272 reviews
2651 points
(5.00)
3/5/2026
My go to j cups. Solid built and protection quality. Easy to install And remove from rack post.
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Basement Brandon
Basement Barbell
500 reviews
4294 points
(5.00)
3/4/2026
They fixed the issue with compressed rubber in the 1.0s. I always liked the lower vertical profile of these when I owned my PR-5000.
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RogueCrusher
mTor-ture Chamber
331 reviews
3470 points
(5.00)
3/4/2026
These are inexpensive compared to Rogue and are durable. I customized mine by adding red to match my REP PR 5000 rack. There is no wiggle or play either with mine. At this point I use two sets of these to hang bars off of the back bottom of my rack.
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Batz
Batz's Gym
46 reviews
473 points
(5.00)
3/2/2026
Definitely my favorite j-cups. Work great, have a high weight limit, and the flat over-sized landing is really helpful. Has UMHW in all the places needed, and looks amazing with the Rep cutout.
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TGeno15
Geno’s Gym
72 reviews
917 points
(4.67)
2/28/2026
Work great and look pretty nice. Nothing too fancy
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Redeemed Iron Garage Gym
Redeemed Iron
23 reviews
552 points
(5.00)
2/25/2026
Amazing! These have been great! Going to get another set!
Performance
Value
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