- Metal chassis
- Applied grab rails and steps in low material thickness
- Wheelsets in toe bearing
According to sheet 390 of the rolling stock index, the Koniglich Bayerische Staats-Eisenbahnen received a series of 190 flat cars between 1889 and 1891. The cars all had a handbrake with brakeman''s cab and a symmetrical undercarriage. They had a load carrying capacity of 10.5 t and were classified as working cars with the classification X. The railway administration used them primarily to transport tracks, ballasts and other track materials.