Kurongeka kwevhiri
Kusagadziridzwa zvakanaka "geometry" yemavhiri kunogona kuve nengozi kutyaira, uye zvakanyanya zvinoparadza zvimwe zvikamu zvemota.
Kunyangwe zvisingadiwe, dzimwe nguva zvinobatsira kutarisa zvizere mavhiri ekumisa angles.
Varidzi vemotokari vanowanzo tarisira pasi kona chaiyo yemavhiri emotokari dzavo. Kunyange pakutenga motokari yakashandiswa, havawanzosarudza kutarisa "geometry" vasati vasayina chibvumirano. Iyo ine simba rakakura pakuchengetedza kutyaira, kubata mota, kugadzikana uye mwero wekupfeka matayi. 
Mberi mavhiri
Zvigunwe uye camber yemavhiri epamberi ndizvo zvakanyanya kukosha nekuti ndizvo zviri nyore kugadzirisa zvisizvo mumigwagwa yedu ine makomba nemakomba. Muchokwadi, zvingava kuchenjera kutarisa "geometry" yemavhiri epamberi isati yatanga mwaka wega wega wezhizha. Paunenge uchitenga motokari yakashandiswa, unofanira kuita izvi pakarepo. Zvisinei, kutanga unofanira kutarisa uye kubvisa kutamba mukumiswa, uye ipapo tarisa geometry. Iyi imari diki, uye iyo chaiyo "geometry" yemavhiri epamberi inowedzera kuchengetedza kutyaira uye kudzivirira kukurumidza kupfeka matayi.
makona mana
Chinonyanya kukosha mu geometry mana mana: camber angle, kingpin angle, kingpin advance angle uye convergence.
Kana mavhiri asina kurongeka zvakanaka, matai anopfeka nekukurumidza uye asina kuenzana. Iko kutenderera uye kona yekutenderera kweiyo spindle yekufambisa inotarisa kugadzikana kwemotokari painotyaira, sezvo inokanganisa kubata kwayo. Kuwedzera kusiri iko kwepini yemambo kunoita kuti mota isagadzikane paunenge uchityaira. Kurongeka kwakaringana kwemavhiri kunodzivirira kutsvedza parutivi, kunonatsiridza kugadzikana kwese uye kunodzivirira kupera kwematayi zvakanyanya.
Tarisa gore negore
Isu tinogara tichikukurudzira kuti utarise iyo "geometry" usati watenga yakashandiswa mota, uye yakarongwa kamwe pagore isati yatanga mwaka wezhizha. Isu tinotarisa geometry mumusangano wakasarudzika wakashongedzerwa nemidziyo yakakodzera. Aya madhiri madiki, asi akakosha, nekuti anokanganisa kuchengetedzwa kwekutyaira.
