I think the 2012 model has about 3 more hp and is lighter, back to the original 2004 weight or close to it. Apparently there is a little more grunt down low as well. The reviewers seem to think it makes a difference. The suspension changes are somewhat of a mystery at this point. I will be curious to see if the front end still needs to be dropped.no mention of smaller fuel tank, lost horsepower, lower red line or, additional 50lbs.weight. oh well, stuff happens. i still like it better than 2011 model.