Inspire 50lbs Weight Stack Upgrade Blown through your stack? If you’re a dedicated heavy lifter with no more places to put your pin, here’s 50 LB (or more) of good news! The Inspire Fitness 50 LB Stack Add-on offers the extra weight to make your cable-machine workout challenging again. Build up your resistance with five 10 LB heavy-duty metallic alloy plates, designed to last a lifetime. These plates are compatible with the Inspire Fitness M1 and M2 Multi-Gyms, the Inspire Fitness SCS Smith Cage System, and the Inspire Fitness FT1 Functional Trainer. Dual weight-stack machines will require two add-ons (see Specifications). Consult your local dealer about compatibility with other weight-stack machines. Bring on the bricks! Specifications SKU: EXGINSPW5 Number of Plates per Stack: 5 Weight per Plate (LB): 10 Dimensions: Width (Inches): 10 Length (Inches): 6 Height (Inches): 5 Weight (LB): 50weight