Ukukhanya kwebhuleki ephezulu kufakwe ngokubanzi kwindawo ephezulu ngasemva kwesithuthi, ukwenzela ukuba isithuthi esiqhuba ngasemva kube lula ukubona umphambili we-brake yesithuthi, ukukhusela ingozi yangasemva.Ngenxa yokuba i-avareji yemoto sele inezibane ze-brake ezimbini ezifakwe ekupheleni kwemoto, enye isekhohlo kunye neyokunene.

Ke isibane sebhuleki ephezulu ikwabizwa ngokuba sisibane sesithathu sokuqhobosha, isibane sebrake esiphakamileyo, isibane sesithathu sokuqhobosha.Isibane sebhuleki esiphakamileyo sisetyenziselwa ukulumkisa isithuthi ngasemva, ukunqanda ukungqubana ngasemva.

Izithuthi ezingenazo izibane eziphezulu ze-brake, ngakumbi iimoto kunye neemoto ezincinci ezine-chassis ephantsi xa i-braking ngenxa yesikhundla esisezantsi sokukhanya kwe-brake yangasemva, ngokuqhelekileyo ukuqaqamba okwaneleyo, ezi zithuthi zilandelayo, ngakumbi abaqhubi beelori, iibhasi kunye neebhasi ezine-chassis ephezulu ngamanye amaxesha kunzima. ukubona ngokucacileyo.Ke ngoko, ingozi efihliweyo yongquzulwano ngasemva inkulu ngokwentelekiso.[1]

Inani elikhulu leziphumo zophando zibonisa ukuba ukukhanya kwebhuleki ephezulu kunokuthintela ngokufanelekileyo kwaye kunciphise ukwenzeka kongquzulwano ngasemva.Ngoko ke, izibane eziphezulu zokuqhobosha zisetyenziswa kakhulu kumazwe amaninzi aphuhlileyo.Ngokomzekelo, eUnited States, ngokwemigaqo, zonke iimoto ezisandul’ ukuthengiswa kufuneka zixhotyiswe ngezibane eziqhoboshekayo ukususela ngowe-1986.