IRWIN FITNESS ROLLER J-CUPS 2.0
Center your barbell effortlessly before every lift. Built with machined return rollers and a solid-steel clasp, the Roller J-Cups 2.0 allow you to adjust loaded bars sideways without damaging knurling or scratching uprights.
Features & Build Specs
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Made in Canada: Manufactured in-house from solid plate steel and machined roller shafts for commercial power racks.
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Tapered Return Roller Design: Machined with a center dip profile that automatically channels standard and specialty barbells back to the exact center position.
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Roller Material Options:
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Machined Acetal Plastic: High-tensile composite that protects knurling and offers smooth rolling performance.
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Hardened Steel: Machined from 2" metal shafts, heat-treated to ~900 VHN, and plated in electroless nickel phosphorus for maximum durability under heavy usage.
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Flat Roller Alternative: Available in a flat-roller option for lifters who prefer rolling the bar forward or backward against the upright before unracking.
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Secondary Pin Locking Hole: Includes a 5/8" or 1" bottom pin hole to accept magnetic or detent safety pins for added security during heavy training.
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Full Rack Protection: Lined with protective plastic components to shield your rack uprights and powder coating from metal-on-metal contact.
Rack Fitment & Customization
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Clasp Tolerance: Engineered with a solid-piece formed clasp held to a tight +/- 1 mm tolerance for a rigid, zero-slop fit on standard 3" x 3" rack tubing.
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Metric & Imperial Options: Can be configured with custom internal spacers to fit metric rack tubing upon request.
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Custom Powder Coat: Choose custom color finishes to match your power rack or gym branding.