54 in a 30 will be 6 points and a fine, no ban as its at the lower end of the spectrum for this speed and they will want something out of you £££ wise.... Its sh*tty I know from a 1 off experience I had for 53 in a 30 but unless money is no object and you plan to challenge, take the hit and plead guilty as this will deduct 25% of the fine of a weekly salary. Your only concern will be if your insurance company has a 1 or 2 strikes policy and don't up your premiums, fortunately my insurance company has a 2 strikes policy so I wasn't hit too bad in the pocket.