Help me figure this issue out plz!

Okay so here’s the deal summed up shortly.

I was driving my friends rzr with him. He drove it for about 20 minutes and we went decent but not to hard. I then drove straight down a road got going pretty fast about 50-60. Slowed down for a turn then started going about 30-40 had a slight fishtail going so slowed down then after about 30 yards after the turn the bead on the front drivers tire popped we believe the wheel dug in the dirt and we rolled it instantly and and I believe it rolled one full roll and landed on the side. No one was hurt just a scraped arm. But the issue I’m wondering is why would that bead of popped. His dad essentially wants me to buy a new rzr and is adamant I was driving it like I stole it. I truly wasn’t its was only my second time ever driving it so I only was going straight no jumps or hard turns. And as I said we were no further then 30 yards from the turn. I let off the gas and coasted it Down to fix it. We didn’t even turn side ways and slide a second we just dug in and then instant role.

Was there something that would cause a bead to pop? Any other input