Phetiso (mechanics) ke mochini o tsamaisong ea phetiso ea motlakase, o fanang ka ts'ebeliso e laoloang ea motlakase. Hangata lentsoe phetiso le bolela feela lebokose la li-gear le sebelisang li-gear le literene tsa li-gear ho fana ka phetoho ea lebelo le torque ho tloha mohloling oa motlakase o potolohang ho ea sesebelisoa se seng. Re arola li-phetiso tsa rona ka lihlopha ka ho nahana ka tlhophiso le ts'ebeliso ea lihlahisoa.
