Kirkey 95 Series Seat with 10 Degree LaybackReplaces Kirkey 79 Series! This SFI 39. 2 rated seat is great for Sprint Cars, North East Dirt Mods, and more! 10 degree layback with a three piece design that features 4 inches of total vertical adjustment. Head restraint has 2 inches forward to aft adjustment to keep the helmet close. Extended bottom with better leg separator supports and improved hip fit to eliminate dead air pockets. Available in 14 inch to 17 inch seats.