Bumper ni igikoresho cy’umutekano cyinjiza kandi kigagabanya ingaruka z’inyuma kandi kikarinda imbere n’inyuma by’umubiri w’imodoka. Mu myaka makumyabiri ishize, bumper z’imbere n’inyuma z’imodoka zari zikozwe mu byuma by’icyuma. Zashyizwe mu cyuma gifite ishusho ya U gifite ubugari bwa mm zirenga 3, kandi ubuso bwazo bwasizweho chromium. Zari zivanze cyangwa zisukwa hamwe n’umurambararo w’umurambararo, kandi hari icyuho kinini ku mubiri, nk’aho ari igice gifatanye. 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 mbere, ariko kandi no gukurikirana ubwumvikane n’ubumwe n’imiterere y’umubiri, gushaka ubworoheje bwayo. Kugira ngo ibi bigerweho, bumper z’imbere n’inyuma z’imodoka zikozwe muri pulasitiki, izwi nka bumpers za pulasitiki. Bumper ya pulasitiki igizwe n’ibice bitatu: isahani yo hanze, ibikoresho byo kuyirinda n’umurambararo. Icyapa cyo hanze n'ibikoresho bya buffer bikozwe muri pulasitiki, kandi icyuma gikozwe mu rupapuro rukonje rufite ubugari bwa mm 1.5 kandi rukozwe mu mwobo ufite ishusho ya U; Icyapa cyo hanze n'ibikoresho byo kugorora bifatanye n'icyuma, gifatanye n'ibice bya frame rail kandi bishobora gukurwaho igihe icyo ari cyo cyose. Iki gikoresho cya pulasitiki gikoresha pulasitiki, ahanini gikoresha ubwoko bubiri bw'ibikoresho, polyester na polypropylene, hakoreshejwe uburyo bwo gushushanya. Hariho kandi ubwoko bwa pulasitiki yitwa polycarbon ester series hanze, kwinjira mu buryo bwa alloy, uburyo bwo gushushanya alloy, gutunganya buturutse muri bumper ntabwo bifite imbaraga nyinshi gusa, ahubwo bifite n'akamaro ko gusudira, kandi imikorere yo gutwikira ni myiza, ingano y'ibindi byinshi mu modoka. Bumper ya pulasitiki ifite imbaraga, gukomera no gushariza, ukurikije umutekano, impanuka y'imodoka ishobora kugira uruhare mu gufunga, kurinda umubiri w'imodoka y'imbere n'inyuma, ukurikije uko igaragara, ishobora guhuzwa n'umubiri mu gice, yose, ifite gushariza neza, ikaba igice cy'ingenzi cy'imitako y'imodoka.
