Bought a mini recently that I didn't need really. Put it up for sale. Then stripped it to clean up and regrease and stem was solid in the forks. Took it to work and dropped it in the machine shop and the engineer drilled it out nice for me. GOt forks home and went to put a generic 22.2 stem in it and it doesn't fit. So measured everything and the steered internal dimensions are only 21mm. Where the fork race sits on the steerer (inch headset fitted) there is a shim around the steerer tube to make the one inch race fit snug.
Now where the fook can I get a stem to fit them. My bargain is going to end up costing me a new set of mini forks. Gutted.