There is a general forum classification that covers most, if not all types of r/c vehicles. Because we don't offer a Kyosho specific forum find the general forum that suits the classification of your vehicle.

Have a monster truck: http://www.rcuniverse.com/forum/forumid_160/tt.htm
Nitro onroad car: http://www.rcuniverse.com/forum/forumid_242/tt.htm
electric cars, buggies and truck: http://www.rcuniverse.com/forum/forumid_147/tt.htm

And on it goes. What you want to avoid is posting about a Kyosho in the Traxxas Forum (product specific).