Bumper e na le tšireletso ea polokeho, mokhabiso le ho ntlafatsa litšobotsi tsa aerodynamic tsa koloi le merero e meng, ho latela pono ea polokeho, koloi e ka bapala karolo ea buffer likotsing tsa ho thulana ka lebelo le tlase, ea sireletsa 'mele oa koloi e ka pele le e ka morao,' me kotsing le ba tsamaeang ka maoto e ka boela ea bapala karolo e itseng tšireletsong ea ba tsamaeang ka maoto.
Tlosa bumper 'me u fumane hore lehlakore le letšehali la bumper le ile la thula ka har'a mokoti, ke hore, sebaka seo bumper e robehileng ho sona se hloka ho nkeloa sebaka ke bumper e ncha ea bumper. Mosebetsi oa bumper ke hore, haeba ho ka ba le kotsi, e ka fokotsa tšenyo ea kutu, lemati la mohatla, sete ea mabone a mohatla le likarolo tse ling tsa chrome strip ka tlase ho bumper. Kamora hore e tlosoe bakeng sa ho nkeloa sebaka, sethunya sa polasetiki sa ho tjheseletsa se sebelisoa ho futhumatsa le ho tjheseletsa mapetsong ka morao, 'me thupa ea polasetiki ea ho tjheseletsa e futhumatsoa ha e ntse e tsamaea mapetsong. Sander ea motlakase e sebelisoa ho tjheseletsa lenonyeletso le phahameng la solder le ho boreleli bokaholimo ba pente bo senyehileng ka lebili la ho sila la motlakase. Kamora lekhetlo la pele, putty e omisoa ka botlalo moeeng, 'me lehlabathe la botenya bo fapaneng le sebelisoa ho le tjheseletsa le ho le omisa, ebe chrome plating strip e holim'a bumper e kenngoa.
