Originally Posted by Rice & Gravy
The bigger the bar the less body roll obviously and greater the oversteer. But with the body rolling less that energy has to be transferred somewhere - and that is to the tires, so a bigger bar is going to make your tires work that much harder. A slightly larger front bar will help offset some of that, but again, that energy has to go somewhere in the front too. In my experience all that is fine in the dry but in the wet and the snow a huge rear bar could make things a little squirrelly if you are not careful.
So is 19mm too much or about right? I know an 18 is available as well.