Two-speeder rear stands are of a lighter pattern than the Flyer/Rep type, and I can confirm that the Spares Scheme should have castings for the latter type as I bought some from Graham Moag at the Rally a few weeks ago. The factory originally supplied stands with longer side members for 1927/8/9 models to cope with rear wheel diameters from 19″ up to 21″ rim size. In later years, when 19″ rear rims became standard fitting, a shorter stand was supplied, which made it easier to lift the bike onto the stand.
Brian