Selling an Amira SL4 Di2 2015 Specialized S-Works, Women's Size 51cm. This is the top of the line Women's exclusive ride from Specialized. At 14 lbs, it is unbelievably lightweight and will feel like a rocket. For the lightest, and much more relaxed journey, the frame is top of the line Reality 11r carbon. For buttery smooth electronic shifting, paired with a Shimano Ultegra Di2 22 speed group. Di2 provides you with perfect electronic changes, without stretching wires, and less maintenance than the old mechanical school. Simply tuned so that it functions well. Completed with a carbon wheelset from Reynold's Attack to give you an aerodynamic advantage and weight savings.