Using rollbock technology requires that the narrower gauge network must be built to a structure gauge large enough to accommodate the loading gauge of standard gauge wagons, and that negates one of the cost advantages of narrower gauge construction. The system was tested for the narrow gauge railways in Saxony around 1900 but it found only rare application - tracks requiring higher transport capacity were rebuilt to instead. However it is also possible to use the wagons of the narrow gauge loading gauge type built with standard gauge axles which allows them to run at full speed on standard gauge tracks, piggybacking them on the short section in the mountains by "Rollbock" bogies. This application requires that the receiver of the freight is able to unload those wagons, so they have found only limited use.