Bumper yana da ayyukan kariya mai aminci, ado abin hawa da inganta halayen Aerodyamic na abin hawa. Dangane da aminci, abin hawa na iya buga rawar da ke faruwa idan akwai wani hadari mai rauni mai rauni kuma yana kare gaba. Zai iya kare masu tafiya da ƙafa idan akwai haɗari tare da masu tafiya. Dangane da bayyanar bayyanar, yana da ado kuma ya zama wani muhimmin sashi don yin ado da bayyanar motsin motocin; A lokaci guda, motar bumper kuma tana da wani tasirin Aerodyamic.
A lokaci guda, don rage raunin fasinjoji a cikin taron hatsarin hatsarin gefe, mafi yawan kofa ana shigar da shi a kan motar don haɓaka ƙarfin tasirin ƙofar. Wannan hanyar tana da amfani kuma mai sauki, tare da kadan canji ga tsarin jiki, kuma ana amfani dashi sosai. Tun da wuri kamar yadda ake nunawa a 1993 Shenzhen International Moneyobile Moactobile Moactobile Mote ga masu sauraron kofa su nuna kyakkyawan aikin aminci.
Shigowar ƙofa ƙofa shine sanya katako mai ƙarfi na ƙarfe a kwance ko kuma a ɓoye bangon ƙofar kowane ƙofa, wanda ya tashi da dama, da fasinjojin motar suna da yankin tsaro. Tabbas, shigar da irin wannan ƙafar ƙofar zai ƙara yawan farashi don masu kera motoci, amma don fasinjojin mota, aminci da kuma fahimtar tsaro zai ƙara yawa.
