Kreitler Hot Dog Rollers with Alloy Drums and End Caps, 3-Inch 100-Percent Made in the USA Standard Kreitler Drums are 15-Inch wide and are by far the most popular width; Hot Dog drums are 10-Inch wide; Hot Dog drums are desirable for the most experienced roller riders who want an additional challenge Includes belt and Kompact Frame which is designed for bicycles with 38 to 42-Inch wheelbases; Designed for maximum portability and lighter weight