Hey Pokie, check this out: - https://www.ebay.co.uk/itm/Vintage-Barn-Find-Motorcycle-Side-Stand-ref-D12-/184817234546?ssPageName=STRK%3AMEBIDX%3AIT&nma=true&si=Y954Ecm2k6Xk1%252B5jMYsRp0vQubs%253D&orig_cvip=true&nordt=true&rt=nc&_trksid=p2047675.l2557
I was a cheapskate and wanted a steal so didn't get it. Looking at the bikes in the garage today, the stand I put on the Cyclone is about 2" shorter than the one on the Lightning but the same casting number 67-4889. They must have lengthened the die for the taller A65 frame and I suspect, given the longer stand the 68- part number.
Vic,....I tried to view the ebay item, but to no avail. Anywhoo, sorry you didn't get it. Your take on the Cyclone stand and subsequent tweaking in casting spec seems reasonable ..... what a tangled web Small Heath wove, eh? Looks like Gary just added a post photo that clears some air. Cheers