Iyo ine yekumanikidza roller, eccentric shaft, yemukati chivharo chedota, chekunze chivharo chedota, mhete yekuchengetedza yegomba, mhete ye spacer uye kutakura yakagadzirwa nemhando yepamusoro Zvigadzirwa zvakapedzwa zvinotariswa kuti zvive nechokwadi chemhando yechigadzirwa.