Hi again everyone and a happy new year to all, I have a 1958 BSA Gold Star what threads are used in the frame fittings thanks
Quote from: chrisf-1 on 10 Jan, 2025, 18:03 Hi again everyone and a happy new year to all, I have a 1958 BSA Gold Star what threads are used in the frame fittings thanks
Cycle thread for most fittings. Best supplier of parts (last build I used stainless throughout) was Barleycorn Engineering in Suffolk (owner is Simon)
Coarse threads (such as those on the aluminium parts of the engine) are Whitworth.
That's great thanks very much