I am building a Tiger-60 that has a 4 stroke Thunder Tiger 91-S in it. I plan to build a cowl around the engine and put a 3 blade prop with an aluminum spinner on it.
I have been looking at a couple different sites with spinners and I have just been getting confused. I'm not sure which spinner to get and what size and not sure if it will need an adapter or anything on it.

Help please?