Bumper ni igikoresho cy’umutekano cyinjiza kandi kigatuma ibintu bigwa inyuma kandi kikarinda imbere n’inyuma by’imodoka. Mu myaka makumyabiri ishize, bumper z’imbere n’inyuma z’imodoka zari zikozwe ahanini mu byuma. Zashyizwe mu cyuma cya U-channel gifite ubugari burenze mm 3. Ubuso bwasizwe na chrome kandi buhambirwa hamwe n’icyuma gifunga. Hamwe n’iterambere ry’inganda z’imodoka, bumper y’imodoka nk’igikoresho cy’ingenzi cy’umutekano nayo iri mu nzira yo guhanga udushya. Bumper z’imbere n’inyuma z’imodoka muri iki gihe, uretse gukomeza imikorere yo kurinda, ariko kandi no gukurikirana ubwumvikane n’ubumwe n’imiterere y’umubiri, gushaka ubworoheje bwayo. Kugira ngo iyi ntego igerweho, bumper z’imbere n’inyuma z’imodoka zikozwe muri pulasitiki, izwi nka bumpers za pulasitiki. Bumper ya pulasitiki igizwe n’ibice bitatu, nk’isahani y’inyuma, ibikoresho byo gupfuka n’umurambararo. Isahani y’inyuma n’ibikoresho byo gupfuka bikozwe muri pulasitiki, kandi umurambararo ukozwe mu rupapuro rukonje rufite ubugari bwa mm 1.5 kandi ugashyirwa mu mwobo ufite ishusho ya U; Isahani y'inyuma n'ibikoresho byo gupfuka bifatanye n'umugozi, ufatanye na screw y'umugozi kandi ushobora gukurwaho igihe icyo ari cyo cyose. Ubu bwoko bwa bumper ya pulasitiki bukoresha pulasitiki, ahanini bukoresha urukurikirane rwa polyester na polypropylene rw'ibikoresho bibiri, hakoreshejwe uburyo bwo gushushanya. Mu mahanga hariho ubwoko bwa pulasitiki yitwa polycarbon ester, kwinjira mu ruganda rw'ibumba, uburyo bwo gushushanya injection ya alloy, gutunganya bumper ntabwo bifite imbaraga nyinshi gusa, ahubwo bifite n'akamaro ko gusudira, kandi imikorere yo gutwikira ni myiza, ingano y'ibintu byinshi mu modoka. Bumper ya pulasitiki ifite imbaraga, gukomera no gushariza, ukurikije umutekano, impanuka y'imodoka ishobora kugira uruhare mu gukingira, kurinda umubiri w'imodoka y'imbere n'iy'inyuma, uhereye ku isura, ishobora guhuzwa n'umubiri mu gice kimwe, ihuzwa mu gice kimwe, ifite gushariza neza, ikaba igice cy'ingenzi cy'imitako y'imodoka.
