Anybody with any experience on motorcycles knows that tires stay colder in the winter. I'm not arguing that point. We aren't talking about dragging knees in the winter...we are talking about getting from point A to point B safely. On dry roads, that can be done by airing down your tires and riding very conservatively. I personally would not choose to ride a sport bike year-round, b/c there are other bikes better suited for that. Your racing analogy makes no sense...if they wanted to race year-round they could just do all the 'winter' races in warm climates. You didn't address my comment about riding in the rain? Less grip there, too...but they still race in the rain. As far as riding in the ice and snow, most people probably wouldn't but it can be done safely with some studded tires. With the right equipment, common sense, and riding skills, winter riding can be done safely.