It must have an impact on tyre size I would of thought but has something called standoff spacers to move the tyre away from the adapter.
@CGMarshall provided this link
https://translate.google.com/translate?depth=1&hl=en&prev=search&rurl=translate.google.co.uk&sl=ja&u=http://m801.ocnk.net/product/1
you can use a bb in the dropout as cheaper alternative to a 'standoff spacer'
Sounds sketchy, if the bb cracks your front wheel might end up locking up/jamming into the adapter.
@tbs started
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It must have an impact on tyre size I would of thought but has something called standoff spacers to move the tyre away from the adapter.
@CGMarshall provided this link
https://translate.google.com/translate?depth=1&hl=en&prev=search&rurl=translate.google.co.uk&sl=ja&u=http://m801.ocnk.net/product/1