Quote Originally Posted by noisy_lightning
Well problem is now solved. Was the front wheel which was out of balance. I have also since found out that the tyre change was just that and that didn't include balancing so its partly my fault for not checking.

Still the tyre & fitting was cheap and and balance was done as part of the service so it was free as the wheel was out anyway.

Bike is now back to normal and no longer vibrates which s good as there is a chance of a track day coming up
Good, easy fix. Plonkers though. No professional would change tyres without balancing. :-?