And that is usually the case. A lot of shops will charge a arm and a leg to mount them or won't touch them at all. For as crappy as the handle and as rough as they ride, I don't know why anyone would want run flats. You couldn't give me a spanking new set, I don't care who makes them.I have never seen this but I am not surprised. Someone at Ruf broke their arm mounting my GY F1 Rear 325s. The manager said the sidewall are so hard they put extreme pressure on the mounting machine when they rotate.