Finally managed it…then realised that the double chainset required a shim on the BB..and of course that doesn’t want to go on.
Now realising what a world of bodge this bike was even before I took it on. The double used to be a triple, and the inner ring had literally been chopped off, leaving stubs which, without a spacer, scraped the frame.
I’d hoped to slot on a new cheapo triple, but of course there isn’t enough clearance for the inner ring, precisely what the previous owner found out..
I’ve now angle ground down these stubs of metal on the old double and there appears to be enough clearance to spin the old ‘double’ without the shim…
Is it worth trying to extend it out to fit the triple?
Or should I just chuck the thing in the nearest canal and run away?