Kumberi kunogamuchira simba rekurova, iro rinoparadzirwa nebhampa repamberi kuenda kumabhokisi ekunyudza simba kumativi ese uye rozoendeswa kuruboshwe nerudyi pamberi, uyezve kune mamwe magadzirirwo emuviri.
Kumashure kunokanganiswa nesimba rekurova, uye simba rekurova rinotumirwa nebhampa rekumashure kuenda kubhokisi rinopinza simba kumativi ese, kuruboshwe nekurudyi, uyezve kune zvimwe zvivako zvemuviri.
Mabhampa ekurova ane simba shoma anogona kubata nekurovera, nepo mabhampa ekurova ane simba guru achiita basa rekutumira simba, kupararira uye kuvharidzira, uye pakupedzisira anotamiswa kune zvimwe zvivako zvemuviri, uye ozovimba nesimba rechimiro chemuviri kuti arambe.
America haioni bumper senzira yekuchengetedza: IIHS muAmerica haioni bumper senzira yekuchengetedza, asi senzira yekuderedza kurasikirwa nekurovera nekukurumidza. Nokudaro, kuyedzwa kwebumper kunobvawo papfungwa yekuti ungaderedza sei kurasikirwa nemutengo wekugadzirisa. Kune mhando ina dzeIIHS bumper crash tests, idzo dziri bvunzo dzekurovera mberi nekumashure (speed 10km/h) uye bvunzo dzekurovera kumberi nekumashure (speed 5km/h).
