Gusya ibyuma bikozwe mubyuma bisobekeranye hamwe nicyuma kigoramye ukurikije umwanya runaka hamwe nu tubari twambukiranya (ibyuma byahinduwe kare, ibyuma bya kare, ibyuma bizunguruka, ibyuma bisize, nibindi), hanyuma bigasudira mubicuruzwa birwanya anti-skid hamwe na gride ya kare hagati, Ibyuma bya Steel bikoreshwa cyane cyane mugutwikira, gutondeka ibyuma byubatswe, urwego rwintambwe nibindi.