Iyo knuckle ndeye hinge pane iyo vhiri anotendeuka, kazhinji muchimiro cheforogo. Iyo yepamusoro uye yakaderera maforogo ine maburi maviri ekufambisa eMambo, uye magazini yeknuckle anoshandiswa kukwira vhiri. Iwo miviri yemabhuru emabhegi emabhegi akabatanidzwa neiyo fist yakavezwa chikamu pamicheto yemberi nepamhepo, ichibvumira vhiri rekumberi kuzadzisa kingpin kuti afambe mota. Kuti uderedze kupfeka, bhazi rendarira rinodzvanywa mudenga rePin, uye lubrication yebhazi rakamisikidzwa nekisimusi rakamisikidzwa muhusiku. Kuti uite iyo yekufambisa inoshanduka, fani yakarongedzwa pakati pegwenzi rezasi rekutungamira kweknuckle uye chibhakera chikamu chebwe. Iyo gadziriso gasket inopiwawo pakati pezeve uye chidimbu chikamu cheiyo dhizaini yeknuckle yekugadzirisa mukana pakati pavo.
