The yokes are made from bendable anodized aluminum pipe that has been welded and powder coated. Construction:
1 5/8" 6063-T6 anodized aluminum pipe
High strength-to-weight ratio..
Outside diameter = 1 5/8"
Inside diameter = 1 3/8"
Wall thickness = 1/8""
Cast aluminum LoPro fittings
Stainless steel "coined" U-bolts
NRS Cataraft Yokes place the center of the lower side rails 10" below the center of the top side rail. Generally they work best on NRS River Cats, Kodiak Cats and other manufacturer's cat tubes 24" or larger in diameter. Measure the depth of your inside D-rings to see if this is your best choice. For cats with smaller diameter tubes, the Sport Cat Frame (# 1275) is an excellent choice.