Steering Knuckle, izwi kandi ku izina rya "ram Angle", ni kimwe mu bice by'ingenzi bigize ikiraro kiyobora imodoka, gishobora gutuma imodoka ikora neza kandi ikohereza icyerekezo cy'urugendo rwitondewe. Imikorere ya knuckle ni kwimura no kwikorera umutwaro wimbere yimodoka, gushyigikira no gutwara ibiziga byimbere kugirango bizenguruke kuri kingpin hanyuma imodoka ihinduke. Muburyo bwo gutwara imodoka, ifite umutwaro uhindagurika, kubwibyo rero, birasabwa kugira imbaraga nyinshi, ipikipiki iyobora ibihuru bitatu na bolts ebyiri kandi umubiri urahujwe, kandi unyuze mumurongo wurwobo rwa feri kandi sisitemu ya feri. Iyo ikinyabiziga kigenda ku muvuduko mwinshi, kunyeganyega byanyujijwe hejuru yumuhanda kugera kuri ruline binyuze mumapine nicyo kintu cyingenzi kigomba gusuzumwa mu isesengura ryacu. Mubiharuro, moderi yimodoka isanzwe ikoreshwa mugukoresha umuvuduko wa gravitational 4G kumodoka, kandi imbaraga zunganira ingingo eshatu zo hagati za bushing ya knuckle na point point yo hagati yibyobo byombi byashyizwe kubarwa nkuko byakoreshejwe umutwaro, nubwisanzure bwimyanya yose kumpera yanyuma ya flange ihuza sisitemu ya feri irabujijwe.