If you have already obtained a full standard category A licence and you reach the age of 21 before the two year qualifying period is complete you may opt to take a further test on a motorcycle with a power output of at least 35kW (46.6bhp) to gain immediate access to all motorcycles. This is called Accelerated Access. You can practice for this test on motorcycles above 25kW only if you are accompanied by a certified motorcycle instructor on another motorcycle and you are displaying `L' plates. You do not need to complete CBT again, or pass another theory test.
This must be taken under the supervision of a certified Accelerated Access Instructor. Even on this larger motorcycle, the usual 'Learner' restrictions apply including 'L' plates, no pillion passenger and motorway prohibition.