Ok so a few hours ago I went out to start my 400ex and I pushed down on the foot brake then I heard something that sounded like a gun shot. I looked back where the sprocket/rear brake is and my caliper was in 2 pieces and 1 was on the ground. WHAT HAPPEDED?? Was it defective? And they are 100+ dollars and I hardly have any money. Just wanted to share with you guys. BTW everything was fine no cracks in it or anything and I didn't push on the brake that hard just enough for it to engage.