metal, fiber, metal, fiber, make sure they are staggered. And when you install all new plates, you are gonna need to adjust the linkage! Look in your book and adjust the linkage to specs. Your new clutch SHOULD have come with complete instructions from Barnett...also, if you have AutoZone motor oil in it, drain it out right now! and go get the proper oil from Yamaha. It costs more but car oil has additives that will shorten the life of that expensive clutch you just bought. Let us know if you cant figure it out