Description Reviews MINI Outer Ball Joint! This will fit all gen 1 cars ( R50, R52, R53, MINI Cooper & S). Look at the boot and see if it's ripped! We have also seen a huge improvement in handling when we replace these in cars that are well over 100K miles. You might want to look at one of our full rebuild kits. Stage1 or Stage 2. This is a quality aftermarket part that we use in the shop all the time.