Mine, I curved a 5" piece of 5/8" x 1/16" stainless I had around to go on the inside, so the flap is sandwiched between it and the stock trim piece. I forgot where I got the flap, it's for a rear fender.I trimmed it up a lot. No, it's not normally quite that dirty, that was after driving three days of crappy riding following the remnants of a hurricane.