Did the lettering myself Dave. Just got a couple of sheets of sticky paper, printed the letters on, cut them out using a craft knife to make the stencil, clean the tyre, stick the stenciled letters on, mask any tyre still showing, then a couple of coats of rattle-can off white and peel the masking and stencil off. Pretty happy with the result. Note that rear tyre stencil letters have to be larger than front to fill the higher sidewall. Send me your email address and I can send you my original rough stencil if you wish.