I-bumper iyithuluzi lokuphepha elimunca futhi lehlise umthelela wangaphandle futhi livikele ingaphambili nangemuva komzimba wemoto. Eminyakeni engamashumi amabili edlule, ama-bumper angaphambili nangemuva ezimoto ayenziwe kakhulu ngezinto zensimbi. Anyatheliswa ensimbini ye-U-channel enobukhulu obungaphezu kuka-3mm. Ubuso baphathwa nge-chrome futhi bahlanganiswa noma bahlanganiswa ndawonye ne-frame rail. Ngokuthuthuka kwemboni yezimoto, i-bumper yezimoto njengethuluzi lokuphepha elibalulekile nayo isendleleni yokusungula izinto ezintsha. Ama-bumper angaphambili nangemuva ezimoto zanamuhla ngaphezu kokugcina umsebenzi wokuvikela wokuqala, kodwa futhi nokuphishekela ukuvumelana nobunye nesimo somzimba, ukuphishekela ukukhanya kwawo. Ukuze kufezwe le njongo, ama-bumper angaphambili nangemuva ezimoto enziwe ngepulasitiki, aziwa ngokuthi ama-bumper epulasitiki. I-bumper yepulasitiki yakhiwe izingxenye ezintathu, njengepuleti langaphandle, izinto zokubopha kanye nogongolo. Ipuleti langaphandle nezinto zokubopha zenziwe ngepulasitiki, kanti ugongolo lwenziwe ngeshidi eligoqiwe elibandayo elinobukhulu obungaba ngu-1.5 mm futhi lunyatheliswa emseleni omise okwe-U; Ipuleti langaphandle kanye nezinto zokubopha zinamathiselwe emshayweni, onamathiselwe esikulufini sesitimela sohlaka futhi ungasuswa nganoma yisiphi isikhathi. Lolu hlobo lwe-bumper yepulasitiki lusebenzisa ipulasitiki, ngokuyisisekelo lusebenzisa uchungechunge lwe-polyester kanye nochungechunge lwe-polypropylene lwezinto ezimbili, kusetshenziswa indlela yokubumba ngomjovo. Kwamanye amazwe kukhona nohlobo lwepulasitiki olubizwa ngokuthi i-polycarbon ester, ukungena ngaphakathi kwe-alloy composition, indlela yokubumba ngomjovo we-alloy, ukucubungula ngaphandle kwe-bumper akugcini nje ngokuba nokuqina okuphezulu, kodwa futhi kunezinzuzo zokushisela, futhi ukusebenza kokumboza kuhle, inani lokuningi emotweni. I-bumper yepulasitiki inamandla, ukuqina kanye nokuhlobisa, ngokombono wokuphepha, ukushayisana kwemoto kungadlala indima ye-buffer, kuvikele umzimba wemoto wangaphambili nowangemuva, kusukela ekubukekeni, kungahlanganiswa ngokwemvelo nomzimba ube yingcezu, kuhlanganiswe kube yinto yonke, kube nomhlobiso omuhle, kube yingxenye ebalulekile yokuhlobisa ukubukeka kwemoto.
