Ride restraints aren't getting smaller, Americans are just getting fatter. Ride manufacturers (mainly European manufacturers such as B&M, Vekoma, and Intamin) have begun designing their restraints for the average sized person. If you have done any research into engineering ergonomics, you'd learn that the average American is nearly 30% larger in waist and thigh size than the average global citizen. If manufacturers were to start creating much larger restraints to accommodate larger individuals, this puts the safety of more slender and average sized riders at risk. With the latest safety regulations, and the numerous accidents that have occurred with overweight riders in the past decade, ride designers have begun to take no risks when it comes to ride design and safety.
Oh yea, Diamondback totally exceeded my expectations.
My waist was fine it was my thigh I can't help that.