this Honda CB750K seat pan has being modified. You will need to remove the rear fender and bar on top of rear fender to fit this seat. hard high density foam, please make a note in the payment payment if you want softer foam. 1979-1981 This is a complete seat set which contains a metal seat pan, foam, and cover. You will receive the seat in a complete set as showing in the picture. Our reproduction metal seat pan is very strong and powder coated. We're using high quality foam for long lasting and comfortable seating.