Only applicable if you have nose fairing fitted, if not, disregard the recall notification. ( would have been good if they had put that in the correspondence, hey ho.)
You can check on the Triumph web site (well, if you're in the UK at least) by entering your VIN (https://www.triumphmotorcycles.co.uk/recall-search). That's how I confirmed. Now booked in for fix.
I had mine looked at today for the recall of the wiring covers. There’s also a recall on the ignition switch. I don’t know if this is all that got the letter or just again if the fairing is fitted.