I have a bike I want to use for racing, It came with some heavy wheels, 1,900-2,000 grams per pair, or close. I want to get something a bit lighter.I'm not going to win anything, so it doesn't matter that much. The wheels I am leaning toward now are Easton EA-90 at performance, looks like a closeout of an older model, for $499. Or Shimano RS80 at Ribble, for $419 not including shipping. Right now, performance seems to have free shipping for orders over $150. Both are close in weight, aluminum clinchers. Shimano has some kind of aluminum/carbon combination construction. Nothing I stay up at night worrying over, just wanting some informed opinions.I could also be happy with open pro/ultegra wheels.