Powder coated internal supports tie into the bed frame, giving the Ascent Truck Cap a 240lbs dynamic weight rating and a static weight rating between 770lbs and 880lbs. Engineered specifically for the 4th gen Tacoma, the frame kit helps to stiffen the bed, whilst transferring weight down on to the frame, helping to avoid added stresses to composite bed of the Tacoma. | ARB Ascent Truck Cap Internal Frame and Tub Brace | Black | Steel