I agree with the above. All the Super features and early 80s on the basis of the transfer design and post 70s with under bracket tunnels.
Mexicos had a crimped top and down tube
Doncaster is quite flat so good for those long, flat rides and there's plenty of off road opportunities too on old farm tracks. Big wide skies which is welcome on those dull winter days.
Doncaster town centre is half decent with good transport links - it's near motorways and on the east coast...
You mean this in relation to the traditional tub?
But if you use the correct glue it won't soften and cause the tub to roll
The pink Clement tub glue was like concrete. It didn't soften, the downsides were it was a bugger to remove from rims and it was no good for a spare tub, as it didn't...
That looks at least a 60cm frame, but I'm not the one with the measuring tape
From the pics, the saddle position suggests a bigger frame would be too big. That looks ok. If you need the bars higher, get an upward sloping stem