This is for a set of 2 carburetors as pictured. These are a direct replacement for Amal 30mm – 930 or all 900 series concentric carburetors on Triumph, Norton, BSA, and other British motorcycles. These carbs will accept your stock Norton, Triumph, or BSA cables, and stock air filters that use the threaded removable insert, or later Air box applications. If you have a 1977 or later Triumph we have a listing of these carbs for that application.