u/Aggravating_Turn

Girlfriend has now had 2 tire blow outs on her 2022 x3 sdrive30i in about 20k miles of driving. She has the 21” wheels with Bridgestone 245/40R21 run flats. Has anyone also had issues with the uncommon wheel size? Any alternatives people have found success with?

Each tire repair at the BMW dealerships for this is close to $600. I do get run flats allowing her to travel and not be stranded but nowhere outside bmw dealerships carries these tires.