The CSBW's running surface is approx. five inches wide. The diameter is 10.5 inches. The CSBW has four height settings to choose from, on the lowest available height setting the wheel is approximately 11.5 inches and on the tallest setting the wheel is approx. 12.5 inches. The stand is 11.5 inches wide. The CSBW comes with an extra set of bearings and zip ties should you ever need to replace them.