There's actually a small amount of toe overlap on my XXS (46cm) Cretin with a 30mm front tire, but it's no worse than my 49cm Soma Rush, which has 10mm more fork rake but a 10mm shorter TT. It's really a matter of degree; the overlap on my Schwinn Paramount P14 is massive to the point that even riding away from the rail at the start of races on the velodome I have to be careful not to catch my front tire.
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