The BB840 is a hydraulic bead breaker manufactured by Olmec. It is used for breaking inside and outside truck beads, and tractor tyres mounted on 3-piece rims. It is applicable for rims that measure up to 24" in diameter. The breaker is made out of steel and aluminum, which results in increased dependability and lighter weight. Its gripping force on the rim measures 1kg, while the equipment's net weight is 9kg.