Igikoresho gitanga buffer kumodoka cyangwa umushoferi mugihe cyo guhangayika.
Imyaka 20 irashize, ibibyimba byimbere ninyuma byimodoka byakozwe ahanini nibikoresho by'ibyuma. Bashyizwe mu kajanwa mu mbaho u-shusho hamwe n'ubugari bwa 3mm. Ubuso bwavuwe na chrome kandi buzunguruka cyangwa gusudira hamwe nigitaramo kirekire cyikadiri. Hamwe niterambere ryinganda zimodoka, bumper yimodoka nkigikoresho cyumutekano nacyo kiri kumuhanda wo guhanga udushya. Uyu munsi imodoka imbere ninyuma yinyongera usibye gukomeza imikorere yambere yo kurinda, ariko no gukurikirana ubwuzuzanye nubumwe n'imiterere yumubiri, gukurikirana umubiri wacyo. Kugirango ugere kuri iyi ntego, ibibyimba byimbere hamwe ninyuma byimodoka bikozwe muri plastike, bizwi nka bumpers.ibikoresho byumutekano bikurura no koroshya ingaruka zo hanze kandi zirinda imbere ninyuma yumubiri wimodoka. Imyaka 20 irashize, ibibyimba byimbere ninyuma byimodoka byakozwe ahanini nibikoresho by'ibyuma. Bashyizweho kashe muri u-channel ibyuma birenga 3mm. Ubuso bwavuwe na chrome kandi buzunguruka cyangwa gusudira hamwe na gari ya moshi. Hamwe niterambere ryinganda zimodoka, bumper yimodoka nkigikoresho cyumutekano nacyo kiri kumuhanda wo guhanga udushya. Uyu munsi imodoka imbere ninyuma yinyongera usibye gukomeza imikorere yambere yo kurinda, ariko no gukurikirana ubwuzuzanye nubumwe n'imiterere yumubiri, gukurikirana umubiri wacyo. Kugirango ugere kuri iyi ntego, ibibyimba byimbere hamwe ninyuma byimodoka bikozwe muri plastike, bizwi nka bumpers. Bumper ya plastike igizwe n'ibice bitatu, nk'isahani yo hanze, ibikoresho byo mu nkoko no mu kibeshyi. Isahani yo hanze hamwe nibikoresho bya buffer bikozwe muri plastiki, kandi igiti gikozwe mu mpapuro zikonje zijimye zifite ubunini bwa mm igera kuri 1.5 kandi zishyirwaho kashe kuri u-vepepen; Ibikoresho byo hanze nibikoresho byoherejwe bifatanye nicyo kibeshyi, bifatanye kumurongo wa gari ya moshi kandi urashobora kuvaho igihe icyo aricyo cyose. Ubu bwoko bwa plastike bukoresha plastike, ahanini bakoresha urukurikirane rwa polyister hamwe nibikoresho bya polypropylene byibikoresho bibiri, ukoresheje uburyo bwo gushimura. Mu mahanga hariya kandi ubwoko bwa plastike yitwa Polycarbon Ester, Gushyira hamwe mu buryo bwo guhinduranya, gusarura mu buryo bwo gusudira, ariko nanone bifite ibyiza byo gusura imbaraga, ahubwo bifite ibyiza byo gusura imbaraga, kandi binafite ibyiza byo gusudira, kandi bifitanye isano n'ibyiza, byinshi mumodoka. Bumper ya plastike afite imbaraga, iyobowe nimitako, kubwumutekano wimodoka birashobora kugira uruhare mu mubiri mu gice, bikaba bihujwe n'umubiri, bihumeka mu buryo busanzwe, bikaba bihujwe n'umubiri, bihinduka mu buryo bwihuse, bihinduka igice cy'ingenzi mu bijyanye no kurya imodoka.
