Description Take your Profile® PRO Sidewinder™ Functional Trainer up a notch with the official Ark™ Functional Trainer Upgrade Kit. We designed this kit to make the switch from Plate Loaded to Weight Stack easy, clean, and efficient. No piles of leftover parts. No wasted money. Just smarter progress and a stronger setup. Pre-orders Shipping October 2026 The Profile® Ark™ Weight Stack Functional Trainer Attachment has different MINIMUM ceiling height requirements!! Check out our Compatibility Table in the Specs tab to make sure it will fit in your space! Specs Dimensions (HxWxD) 95", 89", 81" (106", 100, 92") x 53" x 23.5" Rack Weight Capacity 1000 lbs Weight Stack 160 lbs (per side) Finish Powder Coat in 6 available upright colors Upright Size 3" x 3" - 11 gauge Upright Hole Size 5/8" Upright Hole Spacing 2" with 1" in bench area Pulley Ratio 1:1 Cable Travel 95", 89", or 81" Rack TBD J-Cups Included Compatibility MINIMUM Ceiling Height indicates the lowest possible ceiling height for each Upright size when your rack is folded UP in the stored position Rack and Upright Height Profile PRO or CORE 95", 89" or 81" Pull up Bar Multi-grip or Straight (Kipping Bar is NOT compatible) MINIMUM Ceiling Height - 95" Uprights 100" MINIMUM Ceiling Height - 89" Uprights 94" MINIMUM Ceiling Height - 81" Uprights 92" The Ark™ Weight Stack Upgrade Kit does NOT come with uprights. If you need a shorter Upright Height to accommodate your lower ceiling. Please contact our customer service team at [email protected] Suggested Space What's included? 320lbs of Weight Plates Guide and Selector Rods Left and Right Functional Trainer Wall Brackets Color Matched Logo Plate with Peg Board Installation Hardware