As Aleks said, Motorcycle Territories are not nearly as refined as Auto Territories. Some companies don't distinguish motorcycle territories at all, and those that do usually have a very simple structure with few territories.
Territories are generally defined by FSA/Postal Code, and each territory will have a rate factor assigned to it. For example (completely hypothetical):
M1P -- Territory 04 -- 1.00 (i.e. pays the average rate)
M1R -- Territory 18 -- 1.50 (i.e. pays 50% more than average)
N1G -- Territory 02 -- 0.80 (i.e. pays 20% less than average)
etc.
If you think of Ontario as a big 50-piece jigsaw puzzle, each of the 50 pieces represents an Auto territory with a distinct rate factor that determines how much people in that "puzzle piece" must pay relative to the average Ontarian. For motorcycle territories, there are MUCH fewer puzzle pieces, meaning the rates vary less based on where you live. In general, most companies have about 50 Auto Territories but only 1 to 3 Motorcycle Territories.