Chophimba chakutsogolo chimatanthawuza chothandizira chokhazikika cha chipolopolo cha bamper, ndipo chimango chakutsogolo chimakhalanso choletsa kugunda. Ndi chipangizo chomwe chimagwiritsidwa ntchito kuchepetsa kuyamwa kwa mphamvu yakugundana pamene galimoto ikugunda, ndipo imakhala ndi chitetezo chachikulu pagalimoto.
Bokosi lakutsogolo limapangidwa ndi mtengo waukulu, bokosi lotengera mphamvu, ndi mbale yoyikira yolumikizidwa ndigalimoto. Zonse ziwiri zazikulu ndi bokosi lotengera mphamvu limatha kuyamwa bwino mphamvu yakugunda pakagundana kocheperako kwagalimoto ndikuchepetsa kuwonongeka kwa mtengo wautali wa thupi chifukwa cha mphamvu yamphamvu. Choncho, galimotoyo iyenera kukhala ndi bumper kuti iteteze galimoto komanso Kuteteza chitetezo cha omwe ali m'galimoto.
Anzanu omwe amazolowerana kwambiri ndi magalimoto amadziwa kuti mafupa akulu ndi mabampu ndi zinthu ziwiri zosiyana. Amawoneka mosiyana ndipo amagwira ntchito mosiyana malinga ndi chitsanzo. The bumper anaika pa mafupa, awiri a iwo si chinthu chimodzi, koma zinthu ziwiri.
Mafupa a bumper ndi chida chofunikira kwambiri chotetezera galimoto. Chigoba cha bumper chimagawika ku bampa yakutsogolo, yapakati komanso yakumbuyo. Chophimba chakutsogolo chimakhala ndi bampu yakutsogolo, bulaketi yakumanja ya bampu yakutsogolo, bulaketi yakumanzere ya bampu yakutsogolo, ndi chimango chakutsogolo. Zonsezi zimagwiritsidwa ntchito kuthandizira msonkhano wa bamper kutsogolo.
