BELLS OF STEEL / RACK ATTACHMENTS & COMPONENTS
Choose the fit for your setup.
Standard J-Cups (Pair)
Bells of Steel Standard J-Cups provide a protected barbell resting position on a compatible power rack.
Your selection
VAT included. Free shipping.
- Sold as a pair
- UHMW protection
- Three rack fittings
Bells of Steel reviews
Perfect Simple J-Cups
They're big and sturdy, the bar slides great on the protective shields which are on all three contact points and the BOS on them is a nice little touch. Read full review
Hydra (3" x 3"; 5/8" Holes) - Pair
Love them!
Bought my second pair of J Cups from BOS (my first being the roller cups) and I couldn’t be happier. The reason I bought them was it’s easier to have an additional pair instead of constan...Read full review
Hydra (3" x 3"; 5/8" Holes) - Pair
Incentivised reviewInstant gains
Okay, maybe not instant gains like my title says but this is an awesome product. Fits my REP PR-4000 nicely. Built very well and shipping was fast with great packaging. The laser embedde...Read full review
The laser embedded logo is killer but would be a show stopper if the background came in different colors instead of black on black. Definitely will buy more from them in the future.
Hydra (3" x 3"; 5/8" Holes) - Pair
J-Cups - Pair
J-Cups - Pair. Works as intended. Purchased to use w/ bar(s) w/ aggressive knurling re: easy to replace liners as neededRead full review
2.3" x 2.3" (5/8" Holes) - Pair
J-cups pair
They’re perfectly made. Great to have extra of these which eliminates repositiining my existing ones. It saves me time.Read full review
2.3" x 2.3" (5/8" Holes) - Pair
works exactly as advertised
There's really not much to say, fit my all-in-one like a glove, super versatile, do their job 100% as intended, 10/10 would recomendRead full review
2.3" x 2.3" (5/8" Holes) - Pair
Standard J-Hooks/Cups
These are excellent quality and quick to adjust to a different height if required. I can't fault these. Well done BoS.Read full review
2.3" x 2.3" (5/8" Holes) - Pair
Fits Hammer Strength Rig
So happy to find these. They are less than half the price of the Hammer Strength branded J-cups and they fit perfectly with my 3"x3" rig with 7/8" holes. Read full review
Hydra (3" x 3"; 5/8" Holes) - Pair
Excellent product
The perfect addition to my all-in-one trainer. Now I can do bench press, squats, ...Read full review
2.3" x 2.3" (5/8" Holes) - Pair
Standard J-Cups
Perfect for my all in one trainer! Easy to use and take off. Very well made. Read full review
2.3" x 2.3" (5/8" Holes) - Pair
Incentivised reviewJhooks
Solid attachment, works great. Lets me keep 2 different bar settings now without moving things around. Read full review
2.3" x 2.3" (5/8" Holes) - Pair
J Cup Review
Overall experience with BoS is 5 stars. Only gave the J Cups 4 stars because it arrive missing a hex screw. I immediately contacted BoS and they mailed me one ASAP.Read full review
2.3" x 2.3" (5/8" Holes) - Pair
4 Stars
They are solid, good product like everything else BOS sellsRead full review
Manticore (3" x 3"; 1" Holes) - Pair
J
Work wellRead full review
2.3" x 2.3" (5/8" Holes) - Pair
Rack attachments & components
Details that matter
The facts, fitting notes and package information for this product.
Bells of Steel Standard J-Cups provide a protected barbell resting position on a compatible power rack.
Features and compatibility
- Supplied as a pair with UHMW protection on three contact sides.
- Choose 2.3″ × 2.3″ with 5/8″ holes, Hydra 3″ × 3″ with 5/8″ holes, or Manticore 3″ × 3″ with 1″ holes.
- Combined manufacturer load ratings: 700lb for the 2.3″ pair; 1,000lb for Hydra and Manticore pairs.
- Manticore includes magnetic locking pins and inner UHMW protection.
Check rack dimensions, hole diameter and installation clearance before ordering. Rack, barbell, weights and other equipment shown are sold separately.


Before you order
What does my selection include?
The option name identifies the size, finish, fitting or pack being purchased. Product details below list supplied items and any separately sold accessories. Quantity applies to that selected option.
How do I check compatibility?
Match the exact dimensions, rack system, hole size and mounting requirements stated for the selected option. Contact BlackBear if you are unsure before ordering.
Is shipping included?
Yes. Free shipping is included. Check the selected option and package details before ordering.