These are Contacts fitted to my Yokomo rims, for a narrow front, you will have to trim, i just lay the bonded tyre flat, and rotate against a makeshift block that sports a scalpel blade, you get a perfect cut, then just run them up in a drill press to sand the sidewalls. Ive fitted them to Egress rims, and TRF rims too, using a contact adhesive, like Evo stik to bond, love foams on buggies, takes me a way back to car park and fire hose meets lol.
lee