I have a Kona Bear that came with the Marzocchi MXC 100mm fork. I've had the bike for about 9 months and its my first suspension bike. I love everything about it but I'm just wondering how much fork flex is normal. I know that Marzocchi has some of the stronger forks out there, but when I get on the front brakes I can watch the fork move in toward the frame a little and it also vibrates while doing so. I was told its normal, but just wanted to make sure. Oh, for those that don't know it has disc brakes, and I was wondering if that is the reason...due to the fact that the breaking forces are all centered down by the hub?