Igqabi sisigqubuthelo (isuntswana elivelela kancinci, semi-setyhula ngaphezulu kwevili) kwizithuthi eziziinjini nezingezizo iimoto, njengoko negama lisitsho, zigqume iqokobhe langaphandle lezithuthi eziziinjini nezingezonjini. Ngokuhambelana ne-fluid dynamics, nciphisa i-coefficient yokumelana nomoya, vumela imoto ihambe kakuhle.
Ibhodi yamagqabi ikwabizwa ngokuba yi-fender (ethiywe ngokumila kunye nesikhundla sale ndawo yemoto endala efana nephiko lentaka). Amacwecwe amagqabi abekwe ngaphandle komzimba wevili. Umsebenzi kukunciphisa i-coefficient yokumelana nomoya ngokuhambelana ne-fluid dynamics, ukuze imoto iqhube kakuhle. Ngokwendawo yokufakela, inokwahlulwa ibe yipleyiti yamagqabi angaphambili kunye nepleyiti yamagqabi angasemva. Ipleyiti yegqabi langaphambili ifakwe ngaphezulu kwevili langaphambili. Kuba ivili langaphambili linomsebenzi wokuqhuba, kufuneka liqinisekise esona sithuba simiselweyo xa ivili langaphambili lijikeleza. Igqabi elingasemva alinalukhuhlane lokujikeleza kwamavili, kodwa ngenxa yezizathu zokubhabha emoyeni, igqabi elingasemva linearch ethe kratya ephumela ngaphandle.
Okwesibini, ibhodi yamagqabi yangaphambili inokwenza inkqubo yokuqhuba imoto, ithintele ivili eliqengqelekayo isanti, ukuchaphaza kodaka ukuya ezantsi kwekhareji, ukunciphisa umonakalo kwi-chassis kunye nokubola. Ke ngoko, izinto ezisetyenzisiweyo ziyafuneka ukuba zibe nokumelana nemozulu kunye nokubunjwa okuhle kokubumba. I-fender yangaphambili yeemoto ezininzi yenziwe ngeplastiki ene-elasticity ethile, ukuze ibe ne-cushioning ethile kwaye ikhuseleke ngakumbi.
