Engine vibrations of 200NS are negligible when compared with Pulsar 220. These slight vibrations are because of a high compression ratio of 11:1 & lack of fuel injection. But still I don’t think these slight vibrations are hazardous for engine. Many people have clocked more than 1L kilometers without any engine problem.This bike is more efficient for the people who are looking for power and not fuel efficiency.Overall pulser 200NS is a cool bike in reliability, looks, handling and control.Although the price is little bit higher then other bikes of same segment, but the value will be paid off when one rides the street ghost:).