Ka lilemo tse ngata tsa phihlelo ea tlhahiso ea lithapo tsa ratchet tse boima, , Lishenflex e ka fana ka mefuta e mengata e boima ea lithapo tsa ratchet . ratchet tse ka khonang ho sebetsana le mekhoa e mengata, haeba u e hloka, ka kopo fumana tšebeletso ea rona ea inthaneteng ka nako e nepahetseng mabapi le mosebetsi o boima o ka khutlisang marapo a . Ntle le lethathamo la lihlahisoa tse ka tlase, u ka boela ua iketsetsa marapo a ratchet a boima a ikhethang ho latela litlhoko tsa hau tse khethehileng.