Just traded my 18,000 mile '03 636 for a car. Now I'm debating which bike to buy. '04 6R or 6RR? This will be mainly a track day bike. My question is, does anyone know a web site that list all components of the Kawasaki race kit and the prices. 6RR(less power,slipper clutch,possible race kit) or 6R( more power, buy a slipper clutch) Which is better?