You can't just have an M.
Once you get your M, you automatically get a G1.
From the MTO:
Class M
Allowed to drive any motorcycles, including motor tricycles, limited-speed motorcycles (motor scooters) and motor-assisted bicycles (mopeds). Holders may also drive a Class G vehicle under the conditions that apply to a Class G1 licence holder.
Class M2
Level Two of graduated licensing for motorcycles, including motor tricycles, limited-speed motorcycles (motor scooters) and motor-assisted bicycles (mopeds). Holders may drive a motorcycle but only with a zero blood alcohol level. Holders may also drive a Class G vehicle under the conditions that apply to a Class G1 licence holder.
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