I-Bumper inomsebenzi wokukhusela ukhuseleko, ukuhlobisa kunye nokuphucula iimpawu ze-aerodynamic zesithuthi. Ukusuka kwindawo yokujonga ukhuseleko, imoto inokudlala indima ye-buffer kwimeko yengozi yengozi ephantsi, ukukhusela umzimba wemoto wangaphambili kunye nomva; Kwimeko yeengozi nabahambi ngeenyawo banokudlala indima ethile ekukhuseleni abahambi ngeenyawo. Ukusuka kwimbonakalo, ihombisa kwaye iba yinxalenye ebalulekileyo yembonakalo yemoto yokuhlobisa. Kwangaxeshanye, ii-bumpers zemoto nazo zinefuthe elithile le-aerodynamic.
Kwangaxeshanye, ukuze kuncitshiswe umonakalo kubahlali kwimeko yeengozi zempembelelo ezisecaleni, iimoto zihlala zixhotyiswe ngeebhampa zomnyango ukuze kuphuculwe amandla okuchasana nokungqubana kweengcango. Le ndlela iyasebenza, ilula, inguqu encinci kwisakhiwo somzimba, isetyenziswe ngokubanzi. Kwangowe-1993 iShenzhen International Automobile Exhibition, kwavulwa ucango lwemoto ukubonisa ibumper ukuze abaphulaphuli bayibone, ukubonisa ukusebenza kwayo kakuhle kokhuseleko.
Ufakelo ucango bumper kumnyango ngamnye ipleyiti yocango oxwesileyo okanye oblique eziliqela umqadi intsimbi amandla aphezulu, ukudlala indima yemoto ngaphambili imoto ngasemva bumper, ukuze yonke imoto ejikeleze bumper "ukhuseleko", ukwenza "udonga lwentsimbi", ukuze ummi wemoto abe kwindawo yokhuseleko ubuninzi. Ngokuqinisekileyo, ukufakwa kwee-bumpers ezinjalo zocango ngokuqinisekileyo kuya kwandisa iindleko ezithile kubavelisi beemoto, kodwa kubahlali bemoto, ukhuseleko kunye nengqondo yokhuseleko luya kwandisa kakhulu.
