185/45 would be good but cant seem to find anywhere that sells them, i know toyo used to make them though. and ive got 175/50 on them at the mo but the side wall is jus to big and cuz they only budget tyres they dont stretch to well, only other ppl like make that size are pirelli with the P6000 so they might give a better stretch but think the side wall will still be too high.