Ana kiran sandar saitin motar motar Aluminum da sunaye da yawa, gami da sandunan nerf, sandunan mataki da matakan gefe, don suna kaɗan.Babban aikin mashaya na gefe shine samar da matakin hawa cikin abin hawa.Don haka, ana amfani da su gabaɗaya akan manyan motoci, kamar motocin ɗaukar hoto da SUVs.Koyaya, don ƙimar kwalliya, ana kuma samun su akan ƙananan motoci, kamar ƙaramin SUVs da crossovers.
Aluminum motar saitin saitin mota yawanci an tsara shi don hawa tare da takamaiman adadin sarari tsakanin matakin da jikin abin hawa.Wannan sarari na iya bambanta, dangane da ƙirar, amma gabaɗaya yana da 'yan inci kaɗan.Hakanan an ƙera su don hawa ƙasa a kan abin hawa, yana ba da izinin ƙarancin izinin ƙasa amma samar da ƙarin aiki don abubuwan hawa.Sandunan gefen kuma yawanci suna da sanduna guda ɗaya waɗanda zasu dace da kowace kofa akan abin hawa.