Tsarin bututun gaba yana nufin goyon bayan da aka saita na harsashin bututun, kuma tsarin bututun gaba kuma katako ne mai hana karo. Na'ura ce da ake amfani da ita don rage shan kuzarin karo lokacin da abin hawa ya yi karo, kuma tana da babban tasiri ga abin hawa.
Babbar motar gaba ta ƙunshi babban fitilar, akwatin ɗaukar makamashi, da kuma farantin hawa da aka haɗa da motar. Babban fitilar da akwatin ɗaukar makamashi za su iya shan kuzarin karo yadda ya kamata idan aka yi karo da motar cikin ƙarancin gudu, sannan su rage lalacewar da ke faruwa ga jikin motar da ƙarfin tasiri ya haifar. Saboda haka, dole ne a sanya mata bamper don kare motar da kuma kare lafiyar mutanen da ke cikin motar.
Abokai waɗanda suka fi sanin motoci sun san cewa kwarangwal na bumper da bumper abubuwa ne daban-daban. Suna kama da juna kuma suna aiki daban-daban dangane da samfurin. An sanya bumper a kan kwarangwal, biyun ba abu ɗaya ba ne, amma abu biyu ne.
Kwakwalwar bumper na'urar tsaro ce mai mahimmanci ga motar. An raba kwarangwal ɗin bumper zuwa bamper na gaba, bamper na tsakiya da bamper na baya. Firam ɗin bumper na gaba ya haɗa da sandar layin bumper na gaba, maƙallin dama na firam ɗin bumper na gaba, maƙallin hagu na firam ɗin bumper na gaba, da firam ɗin bumper na gaba. Duk ana amfani da su don tallafawa taron bumper na gaba.