My steering shaft moves up and down when i pull my handlebars. I noticed when I land from a jump. I could hear and feel it. I thought maybe the nut on the bottom was loose. But it was torqued perfectly. Could it be just a worn out bearing at the bottom? I havent looked at that yet because i want to buy the seals nad bearing before I tear it apart(I dont wanna miss any ride time). If I ride it like this is it going to come apart or hurt anything?