Class 011 trailers were built by Vagonka Studénka between 1976 & 1983 to operate with class 810 railcars. The are fitted with driving controls at both ends but are unpowered. They have seating for 56 second class passengers.

Empty stock arrives at Bratislava hl st led by trailer 011 624-4 with trailer 011 867-9 and powered by 810 427-5 at the rear. Photographed on Thursday April 29th, 2004.