Two wheelset, one for track, one for crit.
I don't think there's manuy obstacle on the track to worry about riding on tyres smaller than the rims.
This is probably most sensible thing to do, and it will hopefully justify the magic io wheelset...
Do you still have your track wheel you use on the street?
@HoKe started
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Two wheelset, one for track, one for crit.
I don't think there's manuy obstacle on the track to worry about riding on tyres smaller than the rims.