I-bumper sisixhobo sokhuseleko esifunxa kwaye sinciphise impembelelo yangaphandle kwaye sikhusele umphambili nomva womzimba wemoto. Kwiminyaka engamashumi amabini eyadlulayo, ii-bumpers zangaphambili nangasemva zeemoto zazenziwe kakhulu ngezinto zesinyithi. Zazinyatheliswe kwintsimbi yetshaneli enobume obungu-U enobukhulu obungaphezulu kwe-3 mm, kwaye umphezulu wawuphathwa nge-chromium. Zazibotshelelwe okanye zidityaniswa kunye nomqadi wesakhelo, kwaye kwakukho umsantsa omkhulu nomzimba, ngokungathi yinxalenye eqhotyoshelweyo. Ngophuhliso lweshishini leemoto, i-bumper yemoto njengesixhobo sokhuseleko esibalulekileyo ikwasendleleni yokuvelisa izinto ezintsha. Ii-bumpers zangaphambili nangasemva zeemoto zanamhlanje ukongeza ekugcineni umsebenzi wokukhusela wokuqala, kodwa kunye nokufuna ukuvumelana kunye nobunye nomzimba, ukufuna ukukhanya kwayo. Ukufezekisa le njongo, ii-bumpers zangaphambili nangasemva zeemoto zenziwe ngeplastiki, ezaziwa ngokuba zii-bumpers zeplastiki. I-bumper yeplastiki yenziwe ngamacandelo amathathu: ipleyiti yangaphandle, izinto zokubopha kunye nomqadi. Ipleyiti yangaphandle kunye nezinto ze-buffer zenziwe ngeplastiki, kwaye umqadi wenziwe ngeshiti eqengqelekayo ebandayo enobukhulu obuyi-1.5 mm kwaye yenziwe ibe ngumngxuma omile njengo-U; Ipleyiti yangaphandle kunye nezinto zokuthambisa zinamathele kumqadi, onamathele kwizikrufu zerail zesakhelo kwaye unokususwa nangaliphi na ixesha. Le bumper yeplastiki isebenzisa iplastiki, ngokuyintloko isebenzisa iintlobo ezimbini zezinto, i-polyester kunye ne-polypropylene, kusetyenziswa indlela yokubumba nge-injection. Kukwakho nohlobo lweplastiki olubizwa ngokuba yi-polycarbon ester series phesheya, ukungena kwi-alloy composition, indlela yokubumba nge-alloy injection, ukucutshungulwa ngaphandle kwe-bumper akupheleli nje ekubeni nokuqina okuphezulu, kodwa kukwanenzuzo yokuwelda, kwaye ukusebenza kwe-coating kulungile, inani elininzi ngakumbi emotweni. I-bumper yeplastiki inamandla, ukuqina kunye nokuhombisa, ukusuka kwindawo yokhuseleko, ingozi yengozi yemoto inokudlala indima ye-buffer, ikhusele umzimba wemoto wangaphambili nowangasemva, ukusuka kwimbonakalo yembono, inokudityaniswa ngokwemvelo nomzimba kwisiqwenga, iyonke, inomhombiso omhle, ibe yinxalenye ebalulekileyo yembonakalo yemoto yokuhombisa.
