Bumper nigikoresho cyumutekano gikurura kandi kigabanya ingaruka ziva hanze kandi kirinda imbere ninyuma yumubiri wimodoka. Imyaka 20 irashize, ibyuma byimbere ninyuma byimodoka byari bikozwe mubikoresho byicyuma. Bashyizweho kashe mu cyuma cya U gifite uburebure bwa mm 3, kandi hejuru yavuwe na chromium. Barazungurutswe cyangwa basudira hamwe hamwe n'urumuri rurerure rw'ikadiri, kandi hari icyuho kinini n'umubiri, nkaho ari igice gifatanye. Hamwe niterambere ryinganda zimodoka, bumper yimodoka nkigikoresho cyingenzi cyumutekano nayo iri munzira yo guhanga udushya. Uyu munsi imodoka imbere ninyuma yinyuma usibye gukomeza umurimo wambere wo kurinda, ariko kandi no gukurikirana ubwumvikane nubumwe hamwe nimiterere yumubiri, gukurikirana uburemere bwabyo. Kugirango ugere kuriyi ntego, ibyuma byimbere ninyuma byimodoka bikozwe muri plastiki, bizwi nka bamperi. Amashanyarazi ya pulasitike agizwe n'ibice bitatu: isahani yo hanze, ibikoresho byo kwisiga hamwe nigiti. Isahani yo hanze hamwe nibikoresho bya bffer bikozwe muri plastiki, kandi urumuri rukozwe mu rupapuro ruzengurutse ubukonje rufite uburebure bwa mm 1.5 hanyuma rugizwe na U-shusho; Isahani yo hanze hamwe nibikoresho byo kuryamaho bifatanye nigiti, gifatanye kumurongo wa gari ya moshi kandi gishobora gukurwaho igihe icyo aricyo cyose. Iyi bamperi ya pulasitike ikoresha plastike, ahanini ikoresha ubwoko bubiri bwibikoresho, polyester na polypropilene, hakoreshejwe uburyo bwo gutera inshinge. Hariho kandi ubwoko bwa plastiki bwitwa polycarubone ester serie mumahanga, kwinjira mububiko bwa alloy, uburyo bwo gutondeka inshinge, gutunganya hanze ya bumper ntabwo bifite imbaraga zikomeye gusa, ahubwo bifite inyungu zo gusudira, kandi imikorere yo gutwikira ni nziza, ubwinshi bwibindi byinshi mumodoka. Amashanyarazi ya plastike afite imbaraga, gukomera no gushushanya, uhereye kumutekano, impanuka yo kugongana mumodoka irashobora kugira uruhare runini, kurinda umubiri wimodoka imbere ninyuma, bitagaragara, birashobora guhuzwa mubisanzwe numubiri mubice, byose, bifite imitako myiza, bihinduka igice cyingenzi cyimiterere yimodoka.
