On my old sprocket I had a spacer to make it fit a 3 piece but when I took that same spacer and tried to put it on my new Kink OG sprocket it didn't fit, but it says that it is drilled to fit 1 piece cranks and you need a spacer for it to fit a 3. My old one just fell into place in my sprocket, but this one might fit if I pound it it a little, is this normal?