Curb rash happens when you bump the wheel against a curb or a pothole, which scratches the rim surface. Wheel rims can be costly to replace, whether they are aftermarket or new factory rims. Luckily, you can fix the damaged wheel rims yourself, but you shouldn't delay repairs, since rust may eventually form. Fix the curb wheel damage by following these tips. Prepare to Fix the Rim To fix the wheel rim, gather: