I-bumper inemisebenzi yokukhusela ukhuseleko, ukuhlobisa isithuthi kunye nokuphucula iimpawu ze-aerodynamic zesithuthi.Ngokokhuseleko, isithuthi sinokudlala indima yesithinteli kwimeko yengozi yontlitheko olukwisantya esisezantsi kwaye sikhusele umphambili nomzimba ongasemva;Inokukhusela abahambi ngeenyawo kwimeko yeengozi kubahambi ngeenyawo.Ngokubhekiselele kwimbonakalo, ihlobisa kwaye ibe yinxalenye ebalulekileyo yokuhlobisa ukubonakala kweemoto;Ngexesha elifanayo, i-bumper yemoto nayo inefuthe elithile le-aerodynamic.
Kwangaxeshanye, ukuze kuncitshiswe ukwenzakala kubakhweli xa kukho ingozi yempembelelo esecaleni, i-bumper yocango idla ngokufakwa kwinqwelo-mafutha ukuze kuphuculwe amandla okuthintela ukungqubana komnyango.Le ndlela iyasebenza kwaye ilula, kunye notshintsho oluncinci kwisakhiwo somzimba, kwaye isetyenziswe ngokubanzi.Kwangoko kwi-1993 Shenzhen International Automobile Exhibition, i-Honda Accord yavula inxalenye yocango ukuze iveze i-bumper yocango kubaphulaphuli ukubonisa ukusebenza kwayo kakuhle kokhuseleko.
Ukufakwa kwe-bumper yocango kukubeka imiqadi yentsimbi ephezulu ngokuthe tye okanye ngokutyibilikayo kwipaneli yomnyango wocango ngalunye, edlala indima ye-bumper yangaphambili nasemva, ukuze yonke imoto "ipheleke" yi-bumpers ngaphambili, ngasemva, ngasekhohlo nasekunene, ukwenza "udonga lobhedu kunye nodonga lwentsimbi", ukwenzela ukuba abakhweli beemoto babe neyona ndawo ikhuselekileyo yokhuseleko.Ngokuqinisekileyo, ukufaka olu hlobo lwe-bumper emnyango ngokuqinisekileyo kuya kwandisa iindleko ezithile kubenzi beemoto, kodwa kubakhweli beemoto, ukhuseleko kunye nemvakalelo yokhuseleko luya kwandisa kakhulu.
