roll bar
US /ˈroʊl bɑːr/
UK /ˈroʊl bɑːr/

1.
barra antivuelco, jaula antivuelco
a bar or set of bars fitted to a car to protect its occupants if it overturns
:
•
The race car was equipped with a sturdy roll bar for safety.
El coche de carreras estaba equipado con una robusta barra antivuelco para mayor seguridad.
•
Many off-road vehicles have an external roll bar.
Muchos vehículos todoterreno tienen una barra antivuelco externa.