Replacing the head bearings yourself can be a bitch..... You need something to keep the front end up when you remove the forks. After that you need tools to get the old bearings out. An old long screwdriver can do that, but you need a very long one. The tapered headbearings are harder to put on the bike, because to surface being pressed is larger than with the ball bearings. You need to apply more force without damaging the racing surface. Without a special tool with the right diameter this co