I picked up a blown 91 kx 250 today and noticed it had a loose rear axle. I pulled the rear wheel to install a tube to roll it around and noticed the wheel was hard to pull out . I realized the wheel spacer i.d. wa way larger than the axle. I'm wondering if I have the wrong hub, it has six holes for the sprocket and four holes for the brake disc. Can any one tell me if this is correct. Im pretty certain at least the wheel spacers are wrong.