I dont know what happened for sure. We were at the trails riding, we went back to the truck to fuel up and check sh*t out. I was looking at my chain and noticed the swingarm was broke. We had been doing some jumping but I think it happened when I was climbing a hill and flipped over backwards(It also bent my axle, the carrier, broke brab bar,bent silencer, ripped header and silencer apart, broke the brake lever,and popped the tire off the rim). The crazy part is if it was from flipping it I rode on it for 2 or 3 hours after I flipped it. And like i said earlier the only thing holding it together was the swingarm bolt and skid plate/carrier.