What goes up must come down. Whatever you buy, stick with AL rims. I have Reynolds Assaults, which I really like, but just aren't suited for steep downhill braking, even with the yellow swisstop pads. My older Ksyrium SL's work great for the rough road surfaces and steep ups and downs that I do. A friend of mine has HED Ardennes that he likes pretty well. Read review in cyclingnews.