A lock, in particular for a two-wheeler, comprises: a lock body; a hoop that is movable between an open position and a closed position; a latch that is movably supported at the lock body between a locked position in which it blocks the hoop in its closed position against a departure from the closed position and an unlocked position in which it releases the hoop; a sensor for detecting the latch position; and a movably supported lever. A coupling section of the lever is movement-coupled to the latch here. In addition, the lever is supported such that on a movement of the coupling section, a deflection section spaced apart from the coupling section carries out a movement that is greater in comparison therewith, with the sensor detecting the position of the deflection section of the lever to detect the latch position.