The Linchpin: 5/8" to 1" Rack Attachment Adapter Sleeve

There are two dominant pin standards in the rack world (5/8" and 1") and they don't like to play nice with each other. A TON of garage gym owners end up with attachments from multiple brands, multiple rack generations, or both. The result? Perfectly good equipment sitting in a corner because the pin is the wrong size for your rack.

The Linchpin is for garage gym owner who's mixing equipment across brands and generations. You bought great attachments for an old rack, upgraded to a 3x3, and now they don't fit. Or you scored a deal on a used 5/8" pin attachment and your rack runs 1" holes.

This sleeve bridges that gap permanently.