Contribution differences of opinion

hello together drive a golf 4 132kw 1.8t to the chassis all original. on it are original bbs 18 inches jubi also have a 30-30 chassis from h&r in it that is already registered. my examiner says to me that I don’t have to have the rims entered yet it would work that way. however I don’t trust the thing completely and my question is I have to register or not? since the golf already has stabi-like problems.