Loveless wrote:what is the difference between roll bar and roll cage? what do they do? I been told that they protect you from a source and another saying it simply stiff up the chassis further
Roll bar is simply a bar that goes across the headline of a car so that if it ROLLS the bar will be the only thing that the ground touches, along with the A pillar support and such. it also helps reduce body roll of the car quite a bit if installed correctly. look at the SRT-10 Viper.. its a convertable, and the bar going across the back (although its part of the actual body form) is a ROLL BAR so ur head doesnt get severed or ginded into a pulp..or has less chance of getting severed or grinded, if u were to flip the sucker.
a Roll Cage is a cage that is comprised of several roll bars that do the same thing as a roll bar, only in more than just one point..most common is 4 along the headliner, to create a box shape.. a cage is exactly what it is, a metal box to house your body.
a roll bar is just a roll cage missing 3 other headliner bars. they work on quite the same principle. except a cage will protect you about 75% more than a roll bar would.