Just had a slow leak in my back tire. Other tire shop refuse to repair leak, so i made an appt with Tesla to repair. Cost of the repair the hole was $70.00. Why does it cost that much, I googled and find out that there is a rubber slap on the inside of the tire so they had to remove the slap and patch it from the inside. I quess the slap of rubber running on the bottom flat side of tire is to absorb the sounds? Called Lex Brodie and they will do it for about the same price.