Thanks, while reading your question I suddenly remembered something which is already ten years ago
Yes, that must be possible, check out below, these are certainly Minis which you can verify by looking at the beltwheel.
A few more images are here: Strida South Korea gallery (25 pics)
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I have some concerns regarding the removal of the rear brake - I’d certainly NOT do that.
Also, I would not leave empty spoke holes on my rims, that is technically feasible - but it doesn’t look professional.