Two updated 220lb weight stacking with a 2:1 weight-to-effort ratio are added in this functional trainer (moving 100 lbs requires 50 lbs of effort) to provide additional resistance. Larger Achievable Capacity is 110 pounds each side. This device is one of the most robust on the market, thanks to an 11-gauge metal frame.  Larger, higher durable pulleys give your cables resistance motions a cleaner feel.