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How to Get Your Driving License Motorcycle A1 After successfully completing the CBT you can proceed to the next phase of your education, the A1 license. This permits you to drive motorcycles with a the maximum of 125cc engines and a the power output of 11kW. You can then upgrade to a Category A licence after two years or on reaching your 19th birthday. Completion of Compulsory Base Training (CBT). The first step towards obtaining an A1 license is the Compulsory Basic Training