FM-6 Twin Functional Trainer

The Rogue FM-6 Twin Functional Trainer bolts a dual-stack, 2:1 cable system onto a full Monster Rack 2.0 power rack, so the “Twin” in the name refers to two independent weight stacks (250lb or 300lb each) feeding the trolleys — not a single shared plate-loaded source. Rogue’s “patent-pending” pulley routing combines the 2:1 output from each stack into a single-cable, 1:1 takeoff on the shared lat pulldown/low row point, so loading each stack to 150lb delivers a genuine 300lb combined pull without needing a Y-attachment. It’s a different machine from the single-stack FM-6 Functional Trainer, which runs the same trolleys off one weight source, and from the FM-HR Twin Functional Trainer, a taller/deeper tier of Rogue’s FM line that shares an almost-identical name but is a separate configuration. The weight stacks add only about 3.5” behind the rack, and the whole unit ships on the RM-6 Monster Rack 2.0 platform: 3x3” 11-gauge USA steel, configurable at 80/90/100” tall and 24/30/43” deep, with side plate storage (owners report over 400 lb stored on the rig itself).

Two long-form reviews from Iron and Lime Fitness on the same unit, written eight months apart, tell a genuine signal-split story worth taking at face value rather than averaging away. The first, at 11 months of ownership, scores it 9/10 and calls it “commercial-level performance” that stayed rock-solid under 400-500lb barbell loads. The follow-up review — explicitly titled “why I wouldn’t buy it again” — drops to 4/5 not because anything broke, but because of accumulated workflow friction: constant repositioning of trolleys, J-cups, and safeties between exercises, cable trolleys that block mounting jammer arms or some spotter-arm/dip-bar combos on the front posts, and a 49”-wide cage that gets genuinely tight for squat walkouts and deadlift setups. Two transcript-backed YouTube owner reviews corroborate both sides: pulleys are consistently praised as smooth and quiet, attachment quality (stainless lat bar, knurled D-handles) feels premium, and Rogue’s customer service replaced a cracked pulley shroud within two days — but taller users report needing to pull their body back for a full range of motion at the lowest pulley setting, and in-cage deadlift or RDL work is constrained by contact with mounting bolts.

Value is the clearest weak spot across every independent source. GymRadar’s small owner sample (2 reviews, 4.17/5 average) rates Value at just 2.50/5 against 5.00/5 for both Performance and Build Quality, and one of those owners writes plainly that “after several increases it’s hard to recommend the Twin Stack on a value basis” — naming REP’s Ares 2.0 Functional Trainer as the cheaper alternative that essentially every source in this research, from Reddit threads to editorial reviews, treats as the direct competitor. As-configured pricing runs roughly $5,700 to $6,520+ depending on height, depth, color, and per-stack resistance. This is a strong pick for a home gym that genuinely needs a full rack plus two independent cable pull points in one footprint and plans to stay inside Rogue’s Monster attachment ecosystem; buyers chasing the lowest cost per pound of resistance, or planning to load up the front posts with jammer arms and spotter arms alongside the cable system, should cross-shop the Ares 2.0 or Rogue’s own single-stack FM-6 first.