so if what youre saying is true then well lets see a top fuel dragster would hook up just as hard if the rear axle was 12" longer ? are you saying it has nothing to do with weight distribution or are you not shure what youre saying? yes a narrow axle will make some difference on the distribution of the weight to the tires, they will be closer in line with the center of gravity this helps the weight stay center which in turn helps keep the bike running straight. The real question is since your seeking traction do you have an extended swing arm? That will be a noticeable difference.