(2) if the licence bears one or more of classes 1 to 5 and one or more of the classes authorizing the driving of a motorcycle, the insurance contribution is the sum of the following amounts:(a) the insurance contribution set in paragraph 1 for the payment due year, classes 1 to 5 and the total number of demerit points entered on the holder’s record during the 2 years preceding the 3-month period ending on the payment due date;
(b) the insurance contribution set in paragraph 1 for the payment due year, the motorcycle classes and the total number of demerit points, up to a maximum of 3 points, entered on the holder’s record during the 2 years preceding the 3-month period ending on the payment due date.