Bars are better for low speed/stationary topples, but can bend the bike frame in a higher speed crash if they catch on something solid. They can even cause the bike to flip over and damage both sides in the worst cases.
Bungs offer less protection at lower speeds - they really need the bike to go down and start sliding to be at their best. But at those higher speeds they have less chance of bending the bike frame (unless badly designed) as the plastic end gets worn down instead of snagging on the ground.
Is it possible to fit both at the same time?
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