Hamwe nuburambe bwimyaka myinshi mubikorwa 2 mubitereko bya ratchet , Lishenflex irashobora gutanga intera nini ya 2 mumigozi ya ratchet . 2 mumigozi ya ratchet irashobora guhura nibisabwa byinshi, niba ubikeneye, nyamuneka tubone serivise kumurongo mugihe cya 2 mumigozi ya ratchet . Usibye urutonde rwibicuruzwa bikurikira, urashobora kandi kwihitiramo umwihariko wawe 2 muburyo bwa ratchet ukurikije ibyo ukeneye byihariye.