I've made and observation that I don't understand. After a long steep descent, my rear rim and tire is much hotter than my front rim and tire. Since I first discovered this, I have been deliberately using my front brake more, but the rear rim is still much hotter. I am running DA 7800 brakes with DA pads and Kinlin XR200 aluminum rims front and back. I've always heard that the front brakes are more effective than the rear. So why is the rear rim getting so much hotter? Any thoughts?