I recently discovered that not only was on one my rims cracked in three places but that the other three were slightly bent (not visibly, just when you spin the tire on the lift). The guys at the tire place told me that the rim shop installed the rims with out the rubber spacer and with too much air. The cracker rim occured when a nail let out half the air on a 30 mile trip. Do I have grounds to try to get the other three rims straigthened out. I think I should tell them I want the new rim for cost too. What do ya think?