bead breaker

listen to the pronunciation of bead breaker
İngilizce - İngilizce
A tool or device used to separate the bead from a tire rim

Lost in the middle of nowhere, he started to fix it by using his car-jack as a bead breaker, using the weight of the car to gently separate the bead from the rim.

Attributive form of bead breaker, noun
bead breaker