What tyre are you running, is it the Dunflop or did you get something else to work?
Agree, tyres do make a huge difference however it is in my experience that they are not the sole cause of wobble, vibration yes, wobble on its own, no and in the test that Indian did they were running a mixed brand of tyre manufacturer and profile from front and rear, yet they are not claiming that on RM with a 19inch you have to run a mixed brand of manufactures to have a safe bike- hence why I cannot concur with their reasoning, especially in the absence of any other type of investigation.
Who's fault is it? I would say that would be in the promoter (seller) not the buyer, this was an OEM upgrade, not riders wish list, but that doesn't matter, you can win a moral victory and still be out of pocket, they won't be doing anymore so I won't be rushing to spend any more in that store which to a company of there size doesn't matter to them (or me I guess, just move on).
Moving forward, all cost will be at my expense, they have offered a solution to run mixed brands and profiles which I cannot agree with and now I will spend money to investigate the issue which they did not do. If Rick all All Americans cannot fix the issue then the bike will be sold or traded as riding a dangerous bike is not my cup of tea.
Thanks for your input
Its a shame that a simple solution cannot be found . Have you ridden a demo with 19 " front wheel and see how you felt about the tyres on that ? Sometimes you just have to reset and go back to the start . Maybe even go back to the 16" front . A simple solution that will avoid selling the bike , returning stability and allowing you to enjoy your 116 cui kit . 😁