My motorcycle's tire came off.
I heard that a car wheel was used in the assassination.
Could I borrow your bike today? I don’t have mine right now because I’m having a tire replaced.
The car rings are what part of your car? What's round and ringy? Those are your tires. So, a car ring is a tire.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.