RX3 Guardian Stopper (set)

The RX3 Guardian Stopper elevates the Smith machine experience with a smarter, more user-friendly safety design. Acting as a removable Smith Machine stopper, it slides onto the guide rods just like a J-cup, giving you the freedom to use it only when you need it. Pop it into position for extra security during heavy squats and presses — then remove it entirely for RDLs or any movement where you want full depth and natural bar travel. The Guardian Stopper is not designed to be used on the very lowest position, since for bottom-range movements you should simply let the Smith bar travel to the base of the frame as intended.

Inside the stopper, UHMW padding ensures the Smith bar makes smooth, protected contact without metal-on-metal wear. The integrated pop-pin locks the stopper securely into place, keeping it aligned through every rep while still allowing quick height adjustments.

Sold as a set of two, the RX3 Guardian Stopper fits all RX3 Smith Machine uprights and is the ideal upgrade for anyone with an older RX3 system who wants better safety, improved bar interaction, and a more customizable lifting setup.

Key Features:

- Compatibility: Fits RX3 Smith Machine uprights and is designed as an upgrade for existing RX3 Smith systems.
- Functionality: Removable Smith machine stopper that slides onto the guide rods like a J-cup for extra safety during heavy squats and presses, and can be taken off completely when you want the lowest starting position (such as RDLs).
- Protection: Dual protective padding on the interior surfaces helps shield the Smith bar from metal-on-metal contact and reduces noise on impact.
- Adjustment: Integrated pop-pin quick-lock for fast, secure height changes and easy on/off usability during your session.

Specs:

- Sold as: Pair (set of two stoppers)
- Overall dimensions: 8" L x 4" D x 5" H (215mm x 93mm x 130mm)
- Finish: Black powder coat with protective inner padding panels
- Hardware: Built-in pop-pin with chrome knob for secure locking