Brake disc, mwachidule, ndi mbale yozungulira yomwe imatembenuka pamene galimoto ikuyenda. Brake caliper imagwira ma brake disc ndikupanga mphamvu yamabuleki. Akapanikizidwa brake, imagwira ma brake disc kuti ichepetse kapena kuyimitsa. Mabuleki amabuleki amabowoka bwino ndipo ndi osavuta kusamalira kuposa mabuleki a ng'oma
Pali chimbale ananyema ndi ng'oma ananyema ndi mpweya ananyema, galimoto wamkulu ndi zambiri kutsogolo chimbale pambuyo ng'oma. Magalimoto ambiri amakhala ndi ma disk brakes kutsogolo ndi kumbuyo. Chifukwa kuphulika kwa diski kuli bwino kusiyana ndi kutentha kwa drum brake heat dissipation, pamtunda wothamanga kwambiri, sikophweka kutulutsa kuwonongeka kwa kutentha, kotero kuti kuthamanga kwake kothamanga kwambiri ndikwabwino. Koma mu liwiro lotsika mabuleki ozizira, mphamvu ya braking si yabwino ngati ng'oma brake. Mtengo wake ndi wokwera mtengo kuposa drum brake. Choncho magalimoto akuluakulu ntchito ananyema wonse, ndi magalimoto wamba ntchito kutsogolo chimbale ng'oma, ndi liwiro otsika, ndi kufunika kuyimitsa galimoto lalikulu, basi, ntchito ng'oma ananyema.
Ng'oma imamata ndipo imapangidwa ngati ng'oma. Palinso ma POTS ambiri a brake ku China. Imatembenuka mukayendetsa. Pali nsapato ziwiri zopindika kapena zozungulira zokhazikika mkati mwa drum brake. Mukaponda pa brake, nsapato ziwiri za brake zimatambasulidwa pansi pa silinda ya gudumu la brake, ndipo nsapato za brake zimapaka khoma lamkati la ng'oma ya brake kuti muchepetse kapena kuyimitsa.