Ngenxa yokuthi lawa ma-sprockets ohlobo B akhiqizwa ngobuningi, ayonga kakhulu ukuthengwa kunokuphinda kwenziwe ama-sprockets agcwele isitoko, aphinde abhore, futhi afake ukhiye nezikulufa. I-Finished Bore sprockets iyatholakala Ohlotsheni Olujwayelekile “B” lapho ihabhu liphumela ohlangothini olulodwa.