This is a 2017 Specialized Roubaix Comp carbon fiber road bike, size 54cm which has a 54.5cm effective top tube length. Has the new for 2017 Specialized Future Shock front suspension that takes the edge off of road vibrations. This bike has been ridden for less than 25 total, incident free miles. Everything is in excellent, virtually new condition. This bike has Shimano 11 speed hydraulic brake shifters, model ST-R505 and Shimano Ultegra 11 speed front and rear derailleurs. Also has a Shimano 105 11-32 11 speed cassette. It has a Specialized CG-R FACT carbon seatpost and a Specialized Phenom Comp GT hollow rail saddle. Specialized 3D stem, 7 degrees. Praxis Zayante crankset that has 172.5mm arms and 50-34 compact chainrings. It has Shimano S 505 Flat Mount hydraulic brakes. DT-R470 2Bliss Ready wheels with Specialized Turbo Pro 700c x 26mm folding tires with Blackbelt Protection. Has a Specialized Hover Comp handlebar with S-Wrap handlebar tape with Stickygel. This bike is totally stock; you can see it and read more details on the Specialized website. Please note; the left/front brake & shift lever has some cosmetic scuffs that can be seen in the last picture; these are purely cosmetic and do not affect function in any way. I believe that with some effort they could be made to be less apparent.