Usibye kuba mwiza, bifite indi mirimo - kukubwira "uruhu rwose"
Dukunze kuvuga ko impeta yicyuma (cyangwa impeta ya aluminium) yuzuye amapine mubyukuri ntabwo ari ihuriro ryibiryo bigomba kuba "uruziga", kuko muri rusange nanone rwitwa "impeta yicyuma". Naho "ihuriro" nyayo ni umuturanyi waryo, bivuga kwishyiriraho inkunga kuri axle (cyangwa kuyobora ibyuma byimbere ndetse no hanze yacyo (birashobora kandi gukoresha kubyara bibiri (birashobora kandi gukoresha imyenda ibiri) yashyizwe ku bukungu bwafunzwe. Ifitanye isano nuruziga binyuze muri Tiro Screw, hamwe na Tiro igizwe ninteko y'ibiziga, ikoreshwa mugushyigikira imodoka no gutwara imodoka. Inziga tubona kuzunguruka vuba aha ihinduka ryibiziga. Irashobora kandi kuvugwa ko mubice bitatu bya hub, rim na Tiro, ihungabintu rigaragara, mugihe uruziga na tine ni ibice bya pasiporo. Twabibutsa ko disiki ya feri (cyangwa feri) nayo yashyizwe kumurongo, kandi imbaraga za feri yimodoka ikorerwa na hub.