The following are the main definitions and provisional licence requirements (that is what you can do before passing the tests). For more details see here.
- AM or P: Moped. Defined as up to 50cc with max speed 45kph (28 mph). Provisional licence available at 16, but you must complete course of Compulsory Basic Training (CBT) before riding.
- A1: Small motorcycle up to 125cc and max 11Kw with max power to weight ratio of 0.1Kw/Kg. Provisional licence available at 17, but you must complete course of Compulsory Basic Training (CBT) before riding.
- A2: Medium sized motorcycle. No capacity limit but max power 35Kw (46.6bhp) and max power to weight ratio 0.2Kw/Kg. If the machine has been restricted, the original must not have made > 70Kw. Provisional entitlement at age 19 but you must complete course of Compulsory Basic Training (CBT) and A2 machines can only be ridden when you are supervised by qualified instructor.
- A: Unlimited motorcycle. No restrictions on power or power to weight ratio. Provisional entitlement at age 24 but you must complete course of Compulsory Basic Training (CBT) and they can only be ridden when you are supervised by a qualified instructor. If you are under 24 and have held an A2 licence for 2 years then they can be ridden when you are supervised by a qualified instructor.