East German, single cylinder. Ugly but nippy in town. Good tourer, commuter, basic transport, low maintenance. Good motor. Models are ETZ250 (12 volt, disk brake) and the TS250 (6 volt, drum). Most MZs you see will be ETZ. 120kmh tops. Motorrad Zschopau now reborn as MuZ and making those truly scrumptious Yam engined Scorpion singles.