Qhia peb cov khoom, ntau yam thiab txhim khu kev qha Hom 4 reducer, muaj nyob rau hauv 01, 02, 03 thiab 04 cov lus qhia yooj yim. Cov khoom lag luam tshiab no muab cov neeg siv khoom ntau yam kev xaiv los xaiv raws li lawv cov kev xav tau tshwj xeeb, ua kom muaj kev sib tw zoo meej rau txhua daim ntawv thov.
Hais txog kev ua tau zoo, cov khoom muaj zog no muaj ntau yam kev siv fais fab, xws li 0.12 txog 4kW. Qhov kev hloov pauv no ua rau cov neeg siv xaiv lub zog zoo tshaj plaws raws li lawv cov kev xav tau, yog li ua kom muaj txiaj ntsig thiab txo cov nqi hluav taws xob tsawg. Tsis tas li ntawd, qhov siab tshaj plaws tso zis torque ntawm 500Nm ua kom muaj kev ua tau zoo txawm tias nyob rau hauv cov khoom hnyav.