I bought a front fender from a 2011 BA to cut up and bob for my 2005.
But when I got it home I found it would not fit either the bracket or even between the forks. The latter model bikes must have a wider triple tree and bracket to take the fender (and I guess wheel/tire combination). This isn't to be confused with 'Keith's' modification to take a different profile tire (I have that on the 2003 to allow me to run the white walls)....
Of course the seller could have been wrong and the fender could have been off a different bike but it was a used fender from a Triumph Dealer so you hope he recognized the difference.
