hey guys i have 18's on my 5er and whenever someone sits in the back, when i hit a bump or turn fast it starts to scrape
. it also cuts off a little of rubber. you can peel it off. it only scrapes off the edges of the tires, just a very thin layer wich you can peel off. its nothing big but i wonder why? i dont think 18's are too big. all i think is if i need to upgrade something in my suspension. can you guys help me out?