The rear tire on police motorcycles is fit for solo riding only. If converted to a two-up bike, that is, configured for passenger use (with luggage), then the rear tire needs to be changed to one with a higher rating.

Since it has long been Harley-Davidson policy not to mix different types of tires on the same vehicle, we strongly recommend that both front and rear tires be replaced. In order to alert the customer to this safety issue, the following warning appears on a label fitted to the rear fender (approximately 2.54 mm (0.25 in) behind the domestic seat mounting hole).