UPDATE
Well the dealer checked it out on the first service. He said that after a test ride the wobble was so slight that touching the bars with a finger was all it needed to go away. They checked the steering head bearing and said it was torqued perfectly. So he reckoned it wasn't worth worrying about. I said, "Worry about it." He said he would ask Triumph about a warranty claim.
Apparently Triumph said the tyre may be out of round, and that you shouldn't be riding with no hands.
I replied, "That's bl**dy flippant - this is supposed to be a quality product - balanced and aligned - I expect more than a smart comment."
I said I would check for out of round. I have done this and the tyre appears to be fine.
So I'm not sure what to do next. If it is the tyre then the problem will eventually be resolved when I put a new tyre on. However - if it is not the tyre the bike would probably be out of warranty by then - and I'm stuffed.
It is not a major issue - there is no vibration when holding the bars - but it irks me to think that my dream bike is a less precisely engineered than my ex-Yamaha that was only half the price and that Triumph could care less.
