Do I need to take a theory test if I already have a full motorbike licence?
Yes, you will need to take a new theory test if you want a licence for a new category of vehicle. If, however, you want to upgrade within a vehicle category you will not normally need to take a theory test. For example, if you have a full automatic car licence and you want a manual car licence you will not have to take a theory test. Please check with the Driver and Vehicle Licensing Agency (DVLA) or the Driving Standards Agency (DSA) if you are unsure if you should take a theory test.