Improved rim for rum-flat tire assemblies

摘要

An improved rim for a run-flat tire assembly is provided that eliminates recesses or pockets along the radially inner surface of the rim where materials can accumulate undesirably during vehicle operation. One or more circumferential grooves are provided along the outer surface of the rim in order to offset any mass increase due to the elimination of the recesses. In certain embodiments, the radially inner surface may also be provided with certain characteristics that assist in evacuating materials from the inner surface.