Kika.....

I drive My off road RC on All Different Surfaces, including Asphalt.
One Important thing to remember is that these Off Road engines are not designed to Scream WOT Up n Down your street with out a rest.

If ya wanna Drive in That Fashion, you should always use a Car that was Designed for that sort of thing, like a 2 speed Road Car..

But....a FEW Pavement runs shouldnt hurt anything....Lol.