Spoke at length to a dealer at the Scottish Show where Yamaha had a Niken on show , apparently only a small number of dealers in the UK will be selling them (same as the electric EC03 moped ) and he doubted that any would stock demonstrator bikes unless they were supplied by Yamaha UK.
His main concern was who if anyone would actually put their money down and buy the bike , Yamaha have been bitten in the arse in the past by introducing 'different' designs of bikes they though people wanted and needed to find that no-one actually bought them ie TR1, GTS, XV550 plus others.
My thought was fine if it is like the 3 wheel Piaggio and legal to ride on a car licence , however, as he pointed out it requires a full bike licence and it may well be a major stumbling block with the fairly conservative bike buying public.
Think it may well up being a development dead end
As you say, those above looking forward to kicking the three tyres on a test ride may well be disappointed.You have to register with the link I posted above and then wait for confirmation from Yamaha which supplies you with an order number which is held on reserve for 14 days. You then print out the form which also has your nominated dealer's details and then take it to them where they process it.Not sure what they do-probably take a deposit or sumfink.
I think it's a very innovative concept but judging by all the usual ignorant comments on Facebook by the typical UK biker,it won't sell in any numbers over here.
I can see some countries in Europe loving it-the Italians spring to mind and probably the French as they'll get the concept and be prepared to run with it.
Anyway,first impressions here