Abstract: An in-line roller skate has a wheel frame that includes replaceable sidewalls. The in-line roller skate includes a boot having a sole surface with toe and heel portions, a wheel frame, and a plurality of wheels rotatably mounted within the wheel frame. The wheel frame includes a toe plate which is affixed to the toe portion of the sole surface, a heel plate which is affixed to the heel portion of the sole surface, and first and second spaced-apart, downwardly extending sidewalls that are devoid of transverse projections. The frame is formed by releasably attaching the first and second sidewalls to the respective lateral faces of the toe and heel plates.