Hello! I have an 06 Eliminator that has 4500 miles on it. The OEM chain is shot. Not just a little either. It rattles and slacks and is absolutely terrible. Does anyone know the size, as in the 420, 428, 520, etc., size? I know it's a 132 link chain, but the width is a mystery. I won't buy another OEM chain! Also, o-ring or not?

Thanks!!