Rocar De Simon U412
motor vehicle

The Rocar De Simon U412 was a city bus model manufactured jointly by Rocar and De Simon in Romania with an Italian constructed bus body (Inbus 210).
History
The model, introduced early 1994 (UL70 series also called U412-220 UL70) and produced until 2002, was mostly used in Bucharest's bus network operated by RATB even though some U 412-260s are also used in other Romanian cities such as Braşov, Cluj-Napoca, Galati, Craiova, and Oradea.
Rocar De Simon buses also were used by the army and the MAI. Used as a coach, it was also equipped with air conditioning, and it had 2 doors (front and mid). Also some Rocar De Simon buses were sold to some particulars, mainly versions with 2 doors, but also with 3 doors. 2-door versions are also available with a slightly shorter wheelbase. Rocar De Simon was built in 7 versions: U412-220 UL70, U412-220, U412-230, U412-260, U412E (trolleybus), U412 DAF (with DAF platform), and some 2-door versions based on U412-260, with slightly lower wheelbase.
STB has withdrawn all of them from service (including trolleybus 7454), because some of them were severely worn out, but also because RATB wanted to operate solely low-floor busses with air conditioning. The only vehicle remaining at STB based on Rocar De Simon is trolleybus #7459. Some of them were scrapped (the most severely worn out), but some of them are still in some garages of STB in conservation, not in regular use for public transport, they are used for internal purposes or are proposed either for scrapping or sale.
A major problem RATB discovered at these buses after a few years of operation, was the broken chassis, either the rear console was bending, either some busses were bending at the mid, probably because frequently overloading them.
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