Hello I have a 1991 Kawasaki Vulcan and have a Dunlop elite 3 tire in the front and I want to.....?

I want to add a regular dunlop metric tire. Will this mater since it is not the same model as the front tire. Thank you for your help|||No problem that I'm aware of. Just don't put a radial tire on the back and you should be good to go.|||Without racing it wont really matter.