Ukufakelwa komnyango we-bumper guard kukubeka imiqadi emininzi yentsimbi ephezulu ngokuthe tye okanye ngokutyibilikayo kwiphaneli yomnyango womnyango ngamnye, edlala indima yonogada bangaphambili nangasemva, ukuze yonke imoto "ikhatshwe" ngasemva, ngasemva, ngasekhohlo nasekunene, yenze "udonga lobhedu kunye nodonga olunokhuseleko lwentsimbi". Ngokuqinisekileyo, ukufaka olu hlobo lomnyango we-bumper guard emva kwamathandabuzo kuya kwandisa iindleko ezithile kubenzi beemoto, kodwa kubakhweli beemoto, ukhuseleko kunye nemvakalelo yokhuseleko luya kwandisa kakhulu.