Originally Posted by
T-Mar
By the 1980s, aluminum rims were standard on the mid-range models to which I was referring. Also, while you have to look specifically at the model, there were 27" rims available that were compatible with Kevlar beaded folding tyres. Even for those that aren't, you can still install high pressure tyres, as long as they are use steel beads.
All correct. One of my points, left implicit, is that one needs to be careful because of qualifications such as the one you gave.
As far as 1980s midrange, I'm not sure that was the OP's context, nor if to remain within that context is the most useful thing for the BF group.