Editan rawa
Babu shakka ana amfani da faifan birki don yin birki, kuma ƙarfin birki ya fito ne daga ma'aunin birki. Gabaɗaya magana, madaidaicin birki na gabaɗaya shine gyara ɓangaren inda famfon birki na ciki yake, kuma gefen waje tsarin nau'in caliper ne. Kushin birki na ciki yana gyarawa akan famfon piston, kuma kushin birki na waje yana gyarawa a waje na caliper. Piston yana tura kushin birki na ciki ta hanyar matsa lamba daga bututun birki, kuma a lokaci guda yana jan caliper ta hanyar karfin amsawa don sanya kushin birki na waje a ciki. Dukansu suna danna faifan birki a lokaci guda, kuma ƙarfin birki yana haifar da gogayya tsakanin faifan birki da faifan birki na ciki da na waje. A cikin wannan tsari, ana tura piston ta hanyar ruwan birki, wanda shine mai hydraulic. Injin ne ke sarrafa wannan.
Ga birki na hannu, wata hanya ce da ke amfani da kebul don wuce tsarin lever don tilasta wa ƙwanƙwasa birki don a matse su a kan faifan birki, ta haka ne ke haifar da ƙarfin birki.