This case involves a woman who sustained a traumatic brain injury in a motorcycle accident. While the woman was driving approximately 70 mph on the highway, her back tire failed, causing her to crash into the car behind her. The driver’s motorcycle used a tire with a spoked rim. After examination, it was determined that the tire was not defective, but rather, the loss of air from the rim may have attributed to the crash. Because of the unique nature of the wheel and rim, a rubber rim seal was placed on the rim to prevent chafing. It was also discovered in the examination that that rim seal completely detached from the air valve. An expert in polymerization was sought to review the case.