Uruzigani ubwoko bw'uruziga rukozwe mu byuma n'ibyuma, kandi ni nacyo kintu cyambere cyakoreshejwe mu binyabiziga bikoresha ibinyabiziga, bifite ibimenyetso biranga igiciro gito, imbaraga nyinshi, kwihanganira kwambara neza hamwe n’ikoranabuhanga ryoroheje ryo gutunganya, biracyakoreshwa cyane muburyo bwose bwimodoka zigezweho kandi zamakamyo. Ingaruka nyamukuru zayo ni nziza kandi nziza. Ihitamo nyamukuru ryibikoresho byiziga ni ibyuma bya karubone, ibyuma byangiza, ibindi bikoresho byuma. Byinshi mubiziga byibyuma bya karubone bikoreshwa mumodoka rusange ikora ingufu, imbaraga zayo nkeya, kutarwanya imbaraga ziva hanze, kubyara feri yubushyuhe bwimodoka yo gukwirakwiza ubushyuhe ni buke, biragoye gutunganya ibishushanyo mbonera hejuru yicyuma cya karubone, ariko igiciro cyacyo ni ubukungu, kandi ni bwo buryo bwambere bwibikoresho byinshi byimodoka yo mu rwego rwo hasi. Ductile Iron Wheel ifite imiterere yubukanishi kuruta uruziga rwa karubone, ariko biragoye kugenzura imiterere kuruta uruziga rwa karubone mugihe cyo gutunganya, bityo igiciro cyo gutunganya kiri hejuru kandi ubukungu ntabwo ari bwiza. Mu myaka yashize, ibindi bikoresho byibyuma nkibikoresho bimwe na bimwe byifashishwa bikoreshwa cyane nkibikoresho byimodoka, bifite ibyiza byimbaraga nyinshi, uburemere bworoshye, gukwirakwiza ubushyuhe bwiza, gutunganya neza no kubumba, byoroshye gusudira nibindi, kandi byatoneshejwe nabenshi mubakora ibice byimodoka.