1986 Honda CH250 Spacy/Elite: the rim

I bought a simple 10x8 10 inch steel rim to find out how much clearance I've got between the engine. It's time to decide what tyre to use. A quad tyre will definitely have the looks, but handling will be worse. A scooter tyre like a 130/70-10 will end up being 220/50-10 I guess and will reduce top end speed.
The hub I bought was a pre-sale offer, so I'm still anxiously waiting...