Rival's more like Sora quality, Ultegra price. Looking at the two in the flesh and using them you can really tell that the Sram is inferior. While Force and Red are impressive, Rival uses a lot of cheap plastics and isn't as nice to use as 105. We've had a demo set of Rival loaded onto a Giant TCR, replacing the 105 that was on it and it's just crap. Lighter, though.
I totally disagree…….. I had rival, but sold it to fund something else, and went back to 2009 Ultegra, and it is no where near as good as the Sram, so i have gone back to Sram, all shimano road stuff i have is up for sale…..and as for looking inferior, and using cheap plastics…….not a chance. Rival equiv to Ultegra in comparison, but doesnt compare, far better.