Huh bleedin typical, though that could be a good sign, give it 2yrs & they'll be installing new ones at our expense !
IIRC the Runway surface is very hard & abrasive(High Friction) at Llanbedr & the Airfield manuals used to warn of encountering excessive breaking action & tire wear etc..
Edited to say that I now know what happened to the remaining Non-Flying Airframes:-
WH543 - Meteor - Static display at Bentwaters museum
WH734 - Canberra - Scrapped
WH887 - Canberra - Scrapped
WK128 - Canberra - Scrapped
XV435 - Phantom - Scrapped
Neg G