There are no official maximum weight limits for the vast majority of attractions at Walt Disney World or Disneyland. Disney's ride vehicles are engineered to be highly inclusive, with many bench-style seats accommodating guests up to 600 pounds. The primary "limit" is not a specific number on a scale, but rather whether the individual safety restraint (lap bar, seatbelt, or over-the-shoulder harness) can securely latch or "click" into place. A few specialized attractions, such as Avatar Flight of Passage and TRON Lightcycle / Run, use bicycle-style seating with restraints that close around the back and calves; these can be more restrictive depending on how a person's weight is distributed. For these specific rides, Disney provides test seats at the entrance so guests can discreetly check the fit before entering the queue. If the standard seat is a challenge, TRON even offers a "traditional" modified car at the back of some trains to ensure everyone can enjoy the experience. The Silly Symphony Swings at California Adventure is one rare exception with a design-based limit, but overall, Disney remains one of the most accessible theme park operators for guests of all sizes.