I’ve had this happen and it’s scary but it takes minutes to find. Madness to drive it like it and so obvious something is wrong. I wouldn’t be your Mate any more if you got me to drive it like that without saying anything. How he got 37 Km out of it without getting out and inspecting it (it’s obvious when it starts scoring a line round the inside of the rim) or killing him or someone else beats me.
Guys, be aware, look after yourselves out there!
As for whoever worked on that wheel’s brakes last I’d be going to have a word with them. Bolts don’t come loose if tightened properly. I didn’t tighten mine. Got distracted. Now I’ve learned.