Is this when the speed limit is lower or when off or showing the national limit. If at the national limit then 55mph is a bad speed to lock in at as it's just lower than the 56mph limited speed of lorries, which they all tend to try and do. This will trigger lorry after lorry trying to slowly overtake you. Locking in at 57mph may be better.

At 55mph indicated you might get done yourself. Don't rely on the 10% +2 - technically you only have to 1mph over the limit to be prosecuted

Edited by Big John on 29/02/2020 at 20:03