Specialized's Roubaix SL4 Sport is an awesome upgrade for any cyclist looking to redefine their limits. The Specialized SL4 FACT 8r carbon frame has all the road absorbing, engineered compliance that you'd expect, while providing all the responsiveness and performance you need for long days in the saddle. Married to the plush frame is the FACT carbon fork, optimized for stiffness while smoothing out the bumps in the roads. Road chatter is also absorbed through the Zertz elastomer inserts. The AXIS Elite wheels offer a great ride and quality construction at an incredible value for epic days in the saddle over varying terrain. The Shimano 105 drivetrain delivers smooth-shifting and ensures this bike will be right there with you no matter how you decide to ride.