Round Sandwich J-Cups

Round Sandwich J-Cups

Fully protect the knurling on your barbell with these versatile, heavy-duty Round Sandwich J-cups. These cups, which are compatible with 4000 Series power racks, feature plastic lining for total protection of your barbell and the power rack uprights. Plus, the hardware is on the side of the cups, so there’s no metal contact with your barbell. Round cups feature a super secure “doesn’t move” resting point and a dual-lock wraparound design for extra peace of mind with heavy weight on the bar.

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Round Sandwich J-Cups Reviews

Based on 2 reviews from Gym Radar users, the REP Fitness Round Sandwich J-Cups have an average rating of 3.67 out of 5. They're currently the #12 most-owned J-Cups on Gym Radar, with 2 home gyms reporting ownership.

2 Reviews

3.67 / 5
Performance
3.50 / 5
Build Quality
4.50 / 5
Value
3.00 / 5

User Reviews

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Narrow Pavlo
The Laboratory of Strength
62 reviews
653 points
(4.33)
2/13/2026
I do like the way they hold the bar without it moving too much. It's actually great for the Rep cambered mutli grip bar because these keep it from rotating like it wants to do. They came with my rack which I bought used, but they're nothing special otherwise.
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Big Toby
Speas Garage Gym
42 reviews
697 points
(3.00)
2/8/2026
Thought when I bought these that I would like them more than I do. I end up only using them for bench, I like the way that they cradle the bar securely to a set bottom point, no rolling front to back. They are fine but would not buy again
Performance
Value
Build Quality

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