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PRx Performance · J-Cups

3x3 J-cups - 5/8" Pin

Specs validated · FMTS schema
3x3 J-cups - 5/8" Pin

J-cups for 3x3-inch rack uprights with 5/8-inch pins and protective UHMW plastic.

Full specifications

Essentials

Attachment type

Compatibility

Fits which rack
3x3 5/8in
3x3in
5/8in

Features

Catalog status
New

More specs

Mounts to
Rack

Fits these racks

Every rack in the catalog, checked against this attachment's mounting specs and ecosystem listings, grouped by what the evidence says. Each tile carries its verdict — open “why?” for the evidence, confidence, and full reasoning.

Checking a specific rack?

Don't see your rack, or don't own a catalog model? Describe your rack's uprights and hardware and we'll highlight the verdict for it.

Racks from this attachment's own maker with fit evidence — the racks it was built around; “why?” shows the full reasoning.

All In One Trainer
Folding Rack
PRx PerformanceProfile CORE
fits$799.99
listed for the same mounting ecosystem
PRx PerformanceProfile PRO
fits$1,099.99
listed for the same mounting ecosystem
Half Rack
Power Rack
Squat Stand
Wall Mount Rack

FMTS aggregates fit evidence from specifications, owners, manufacturers, and occasional first-party testing. A fit report documents that parts mate; it is not a certification that a product is safe to load.

Recommend, mixed, or don't-recommend from people who own the 3x3 J-cups - 5/8" Pin. No stars and no average — a rating out of five hides more than it says. Verdicts inform you; they never move this product's ranking anywhere on the site.

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Questions & answers

The things a spec sheet doesn't answer. Questions go to people who own the 3x3 J-cups - 5/8" Pin; answers carry a label saying where they came from — owner, former owner, or checked by us. A label tells you who's talking. It never decides who's right.

Ask about the 3x3 J-cups - 5/8" Pin

Concrete questions get answered: will it fit, what's included, how does it behave under load. It goes on the community board too, tagged with the 3x3 J-cups - 5/8" Pin. New accounts' posts get a quick check before they go live. Want to add a title or tag more equipment? Ask on the board.

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Price history

Tracking since Oct 2026 — first captured at $129.99. Not enough history to draw a trend yet.

Used

No one's selling a used 3x3 J-cups - 5/8" Pin on Flex Marks the Spot right now.

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Typical used price: no reports yet.

Setups using this

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