Ikibabi ni igipfukisho (kigaragara gato, igice cyizengurutse hejuru yiziga) ku binyabiziga bifite moteri na moteri, nkuko izina ribivuga, bitwikiriye igikonoshwa cy’imodoka n’ibidafite moteri. Uhuye ningaruka zamazi, gabanya coefficient yo kurwanya umuyaga, reka imodoka igende neza.
Ikibaho nacyo cyitwa fender (cyiswe imiterere n'umwanya wiki gice cyumubiri wimodoka ishaje ibaba ryinyoni). Isahani yamababi iherereye hanze yumubiri wiziga. Igikorwa ni ukugabanya coefficient yo kurwanya umuyaga ukurikije imbaraga za fluid, kugirango imodoka ikore neza. Ukurikije imyanya yo kwishyiriraho, irashobora kugabanywa imbere yibibabi byimbere hamwe nibibabi byinyuma. Isahani yamababi yimbere yashyizwe hejuru yiziga ryimbere. Kuberako uruziga rwimbere rufite imikorere yo kuyobora, rugomba kwemeza umwanya ntarengwa mugihe uruziga rwimbere ruzunguruka. Ikibabi cyinyuma ntikizunguruka kizunguruka, ariko kubwimpamvu zindege, ikibabi cyinyuma gifite arc ihetamye gato arc isohoka hanze.
Icya kabiri, ikibaho cyimbere gishobora gukora inzira yo gutwara imodoka, kubuza uruziga kuzunguruka umucanga, ibyondo kumeneka munsi yimodoka, kugabanya ibyangiritse kuri chassis na ruswa. Kubwibyo, ibikoresho byakoreshejwe birasabwa kugira ibihe birwanya ikirere kandi bigahinduka neza. Uruzitiro rwimbere rwimodoka nyinshi rukozwe mubikoresho bya pulasitike hamwe na elastique runaka, kuburyo bifite umusego runaka kandi bifite umutekano kurushaho.
