I am putting together my new KG461. Installing the fork I notice a almost 3mm space between the fork crown and lower head tube. My cannondale setup had the fork almost flush with the frame. I followed the fork instuctions that came with the bike.I installed the fork cone and then the lower bearing.The fork cones seats all the way down on the fork. Do I need this part? The frame already has the bearing races installed. Is this normal on a LOOK frame?