Roc Foldable 2 Post Cage Builder (3" x 3", ⅝" Holes)
Super-slim folding half rack for those with serious space constraints.
Build Your Rack
Customize your Rack
- 108"
- 90"
- 84"
- 72"
- 41" Depth
- 18" Depth
Rack Safeties
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Spotter Arms
Spotter Arms Rack Attachment
You may be more than a pretty face, but dropping a loaded barbell while benching certainly won’t improve things.Stay safe while benching or squatting with the heavy-duty Spotter Arms Attachment! Or use them as a secondary squat/bench station for barbell supersets! UHMW lining protects your barbell from damage, while the Manticore version boasts extra UHMW to keep your rack uprights in tip-top shape.60mm version: compatible with our 60mm racks and non-B.o.S. 2.3" x 2.3" racks with 5/8" holes.Hydra version: compatible with our Hydra racks and non-B.o.S. racks with true 3" x 3" uprights with 5/8" holes.
Manticore version: compatible with our Manticore racks and non-B.o.S. racks with true 3" x 3" uprights with 1" holes.
Download Spotter Arms Rack Attachment - 2.3" x 2.3" (5/8" Holes) Pair Product Manual$189.99+ ADD
J-Cups
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Hydra J-Cups
Standard J-Cups
These tried-and-true J-Cups have UHMW protection on all sides to keep your bar evenly distributed and secure while withstanding enthusiastic re-rackings. They're more basic than pumpkin spice season, but they do the trick.
60mm version: Fits our 60mm racks + cable towers & non-B.o.S. 60mm x 60mm racks with 5/8" holes. UHMW triple-padding protects your bar & features a 700lb combined capacity.
Hydra version: Fits our Hydra racks & non-B.o.S. true 3" x 3" racks with 5/8" holes. UHMW triple-padding protects your bar & features a 1,000lb combined capacity.
Manticore version: Fits our Manticore racks & non-B.o.S. true 3" x 3" racks with 1" holes. UHMW triple-padding protects your bar & features a 1,000lb combined capacity. Includes quick-locking mag pins and additional UHMW inside to protect your rack.
IMPORTANT: Choose the correct J-Cup version for the uprights and hole size on your power rack. Sold in pairs.
$74.99+ ADD -
Roller J-Cups
Roller J-Cups
Our innovative Roller J-Cups make solo benching a dream. Hefty build with durable nylon rollers to protect your barbell while making adjustments smoother than Usher on roller skates. For all the bench press lovers out there, this is a must.
60mm version: Fits our 60mm racks + cable towers & non-B.o.S. 60mm x 60mm racks with 5/8" holes. Includes durable nylon rollers & features a 600lb combined capacity.
Hydra version: Fits our Hydra racks & non-B.o.S. true 3" x 3" racks with 5/8" holes. The durable nylon rollers & UHMW double-padding protect your bar. Features an 1,000lb combined capacity.
Manticore version: Fits our Manticore racks & non-B.o.S. true 3" x 3" racks with 1" holes. The durable nylon rollers & UHMW double-padding protect your bar. Features a 1,000lb combined capacity. Includes quick-locking mag pins and additional UHMW inside to protect your rack.
$119.99+ ADD -
Sawndwich J-Cups
Sandwich J-Cups
The robust Sandwich J-cups are heavy-duty and a serious plus when using a safety squat bar. The beefy sandwich design, abrasion-resistant lining, and sloped backing protect your bar and you while re-racking.
60mm version: Fits our 60mm racks + cable towers & non-B.o.S. 60mm x 60mm racks with 5/8" holes. Thick HDPE padding protects your bar & features an 880lb combined capacity.
Hydra version: Fits our Hydra racks & non-B.o.S. true 3" x 3" racks with 5/8" holes. Thick HDPE padding protects your bar & features a 1,000lb combined capacity.
Manticore version: Fits our Manticore racks & non-B.o.S. true 3" x 3" racks with 1" holes. Thick HDPE padding protects your bar & features a 1,000lb combined capacity. Includes quick-locking mag pins and additional HDPE inside to protect your rack.
$119.99+ ADD -
Monolift Rack Attachment
Monolift Rack Attachment
The adjustable Monolift Attachment offers a space-saving and inexpensive monolift solution.
UHMW plastic lined to preserve your barbell during enthusiastic re-rackings, with nylon rollers on the Hydra version for easier bar adjustments.
Easy to set up and adjust-just place the pin and drop it in. Perfect for solo handoffs, so you can save every bit of energy to hit that next PR.
IMPORTANT: Our Monolift Arms ONLY fit upright tubing dimensions of 2.3" x 2.3" (60mm x 60mm) with 5/8" holes. Check out the Hydra Monolift for TRUE 3" x 3" uprights with 5/8" holes.
Download Monolift Rack Attachment - 2.3" x 2.3" (5/8" Holes) - Pair Product Manual$299.99+ ADD
Additional Options and Accessories
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Single 24mm Wrench
Hydra Hardware
Simplify the Hydra Power Rack assembly process with this ultra-convenient hardware kit.
The 24mm wrench fits all bolts used in the Hydra line-up, concrete anchor bolts (set of 8) and the rack attachment pins keep your rig secure, and the B.o.S logo plate promises a PR in pizzazz.
Hardware fits true 3″ x 3″ tubing with 5/8″ holes
Download Hydra BOS Logo Tag with Assembly Instructions Product Manual$5.99+ ADD -
Rack Attachment Pin
Hydra Hardware
Simplify the Hydra Power Rack assembly process with this ultra-convenient hardware kit.
The 24mm wrench fits all bolts used in the Hydra line-up, concrete anchor bolts (set of 8) and the rack attachment pins keep your rig secure, and the B.o.S logo plate promises a PR in pizzazz.
Hardware fits true 3″ x 3″ tubing with 5/8″ holes
Download Hydra BOS Logo Tag with Assembly Instructions Product Manual$10.99+ ADD -
