well were leaving the EU, so Honda can start building their motorcycles here.
Well no. Honda started making cars in the UK so they could have open access to the single EU market.
Previous to that they were restricted as to how many cars they could bring into the UK and other European countries.
If Honda did wish to open a manufactuering plant in the EU (not that they do) the UK at this time is not an option for them.
Meanwhile bear in the mind that with the pound devalued, and if it doesn't recover - of which so far it shows no sign of doing so - then we face price hikes for imported goods. That should seal the fate of the 600 super sport catagory if nothing else does.