I don't have reaction bars on my MOG, but a rough structural calculation of the energy to destroy the reaction bar.
I take as hypothesis for the reaction bar :
diameter 25mm
thickness 2mm
length 500 mm
angle : 45°
force at chassis level : 5000 N (~500 kgf)
mechanical stress : 53 daN/mm² (over elastic limit)
Energy : 40 J (Joules)
Energy of a 900 kg car at 36 km/h (10 m/s) : 45 000 J
ratio : ~1/1 000 (40 /45 000)
If you have the dimensions of the reaction bar I can update the calculation, but I think it cannot change the conclusion.
