Cabanga ukuvulela isivakashi esibalulekile isicabha semoto - bekungaba nzima uma isibambo somnyango wangaphandle sihlehla kungazelelwe ngomsindo omkhulu. Ngenhlanhla, lokhu akwenzeki ngoba izibambo eziningi zeminyango yangaphandle zifakwe ama-rotary dampers. Lawa ma-dampers aqinisekisa ukuthi isibambo sibuya ngokuthula nangokushelela, okuthuthukisa ulwazi olunzulu ngomsebenzisi. Ziphinde zivimbele isibambo ukuthi singaphindeli futhi silimaze abagibeli noma silimaze umzimba wemoto. Izibambo zeminyango yangaphandle ziphakathi kwezingxenye zezimoto ezivame kakhulu lapho kusetshenziswa khona ama-rotary dampers.