You must hold one of the following:
A full motorbike licence (AM, A1, A2 or A); or
A full driving licence issued 1st February 2001 (This allows you to ride the X-Tra or the Senda); or
A provisional licence or full driving licence issued before 1st February 2001 plus a CBT (this allows you to ride the Ultra as well as the X-Tra or Senda)