Patented Pending Articulating Functional Trainer Arms

The patent-pending Mutant Arms™ are a major leap forward for our articulating functional trainer arms. A second attachment point lets you switch from a 2:1 to a true 1:1 ratio in seconds, so the weight you load is the weight you feel. They articulate both horizontally and vertically to set the perfect starting position for any exercise – go wide for chest flys and cable crossovers, bring them together for lat pulldowns and seated rows, or angle them up and down for presses, pulls, and everything in between. A detachable counterbalance keeps the cable tracking smooth on horizontal and bottom-up pulls, then lifts off when you don’t need it.

🇺🇸 US Patent Pending — SN 18/882,973 · Filed September 9, 2024
🇺🇸 US Patent Pending — SN 19/544,905 · Filed February 19, 2026

Smith Machine Cable Integration

A standout feature of the MAXUM X3 is the ability to connect the functional trainer’s cable system directly to the Smith machine bar. This lets you use the weight stacks instead of loading plates, making resistance changes quick and convenient. With this setup, you can perform a wide range of movements, including pressing exercises that drive upward and pulling exercises that move downward, expanding the variety of training options beyond a traditional Smith machine.

Counterbalanced & Low Smith Machine

The counterbalance helps to offset the weight of the barbell, making it easier to perform certain exercises with proper form and technique.

The flatfoot rack design allows the smith machine barbell to go as low as possible which is great for exercises like hip thrusts. Other smith machines integrated into bolt down racks cannot go as low due to the lower cross member.

Stainless Steel Front Uprights

The X3 comes standard with stainless steel 3×3 11 gauge front uprights to keep your rack always looking new. Other brands are powder coated or chrome plated which is not as durable. Some of the most well respected power rack brands offer 3×3 11 gauge stainless uprights as a premium option for a reason so if someone says stainless steel uprights are inferior, then they don’t know squat (pun intended).

Standard Commercial Rack Tubing

The frame is built with 3×3″ 11 gauge steel and has 1″ holes throughout making it compatible with rack attachments from other brands. It also features 2″ hole spacing which allows for the precise placements of your J-hooks and safeties for those big lifts.

Dual 220 lb Weight Stacks

The included dual 220 lb weight stacks at 10 lb increments ensures you will have the weight you need for all your functional trainer exercises. And for those that need a little more, the included weight plate horns allow you to add weight plates to the stack.

Optional Quick Attach and Release Leg Press Plate

The optional quick attach and release leg press plates conveniently converts your smith machine into a leg press machine.

Strap Safety Arms and UHMW Sandwich J-hooks

The unique and hefty optional strap safety arms gives you your bar a soft landing when you need it. And the included J-hooks use UHMW sandwiched between two thick steel plates to protect your bars finish and knurl.