I belive you still have to do your CBT, but to make sure i would go to your local motorbike school and ask or even go to a bike dealer they would know too.
I think on a full licence you can ride a 50cc with no training or L plates but on a 125 you need your bike theory test and CBT training before you ride on the road (on L plates) - if you call any bike training school they will be able to give you all the information.