I had 195/50x15 with these wheels and my arches were trimmed. When it was lower and with Supersport coilies the tyres rubbed the arches and the front splitter scuffed the road in dips even though they were trimmed. Changed to Weitec coilies and G60 top mounts + 195/45x15 tyres and less bounce & scuffing and can go lower, but a bit less protection for the rims.