No, you don’t.

Passing the theory test is not a requirement for taking your Compulsory Basic Training (CBT). You only need to have a valid provisional licence to attend a CBT course.

However, you do need to pass the Motorcycle Theory Test before you can book your practical Mod 1 and Mod 2 licence tests. Many riders choose to complete their CBT first, as the riding experience gained can provide valuable context for studying the theory content and answering the motorcycle driving licence exam questions.