A foreign matter removing device which is capable of reliably removing
foreign matter from between a double tire includes at least one foreign
matter removing member interposed in a space of at least one double tire.
A dimension in a width direction of the foreign matter removing member in
a vicinity of a tip end portion thereof is larger than a dimension in a
diameter direction from an outer peripheral portion of a hub, on which
the double tire is fitted, to an outer peripheral portion of a rim of at
least the one double tire.