Tired of rough roads wearing you out? We were, too. But where we see a problem, we can't help ourselves but make a solution. And in this circumstance, that solution takes the shape of the Ruby Comp with Ultegra Di2. The frame is among the lightest that we've ever made, and it's been constructed from our superlative FACT 10r carbon fiber. Its stiffness levels are also off the charts and compared to the SL4 iteration of yesteryear, you'll experience a whole new, faster, and more efficient geometry. Through some advanced, dedicated engineering, however, we've managed to keep the same fit, feel, and position that we've all come to love from the SL4's Women's Endurance Geometry. Of course, you're probably thinking, "get on to the suspension thing up front." We call it Future Shock, and essentially, it's a piston in the head tube with 20mm of travel. We developed this technology in partnership with McLaren Applied Technologies, and the result of this is a host of drastic performance improvements, namely in the vertical compliance department. Without giving a physics lecture, we found that focusing on vertical compliance, instead of fork splay, meant that we could improve smoothness, speed, and comfort in one fell swoop. And of all the bikes that we've tested with our Rolling Efficiency Model, the new Ruby outperforms anything on the market. Lastly, we spec'd it with an awesome set of components that are hand-selected to endure harsh roads. Along these lines, you'll find the Expert outfitted with the likes of Shimano Ultegra Di2 shifting and hydraulic disc brakes, low profile DT R470 Disc wheels, and a host of women's-specific components. - Featuring our Rider-First Engineered design that ensures every frame size has the same legendary responsiveness and smooth ride quality that you'd expect from a Ruby. The FACT 10r frameset holds its own with our highest-end carbon offerings, with the ideal blend of light overall weight and targeted stiffness, while the all-new Future Shock "suspension" system at the cockpit delivers a revolutionary degree of comfort and control. - DT R470 Disc wheels feature reliable, sealed cartridge hubs, and 24 front and rear spokes that keeps weight low and durability high. - Shimano's Ultegra Di2 with hydraulic disc brakes not only offers exceptionally smooth and crisp shifts, but it also provides incredible stopping power and modulation.