Sizes refer to diameter, and if the length is the same, the stifness increses with diameter. So, an 18mm bar is stiffer than a 17.5mm bar. BUT, you have to remember that the length comes into play as well. The M3 front sway bar is smaller than the ti one, but stiffer. That is because it is shorter in length. (so it ends up being a lot lighter too) I don't know what you are running now, but I have a set of front and rear ti sport sway bars with bushings, clamps and end links available- I just dug them out last night... Will be posted in For Sale in a few minutes... |