A skate wheel including a tire support structure adapted to reduce roll
resistance generally encountered from a tire comprising a 60 A to 75 A
Shore hardness material. The tire support structure comprises a flexible
torus portion proximal to an inner core, and a substantially rigid
radially extending portion extending radially outward from the flexible
torus portion. The flexible torus portion cooperates with the inner core
to form a cavity. The radially extending portion extends to approximately
eighty to ninety five percent of the total wheel diameter. When a load is
placed on the wheel, the radially extending portion is pressed against
the flexible torus portion, and the flexible torus portion deforms into
the cavity. The combination of the radially extending portion and the
flexible torus portion moderates distortion of the soft tire, thereby
reducing roll resistance. The resulting combination of a relatively hard
radially extending portion and a relatively soft tire, allows for a more
optimal balance of low rolling resistance and high traction.