Hi Khamil I'm so sorry to hear about your brother, i was in the group riding with him, he was just behind me on the right, so i didn't see what happened, but according to someone who was behind me, "the guy next to him came across him so he had to also move left not knowing u were next to him. So he crossed ur back wheel but we were in such a speed that he lost control of his front wheel n went crashing. I just missed him cos he fell in front of me" Hope he's gonna be okay,