2018 SuperSix Evo Cannondale, with SRAM Red eTap. The size is 52 cm. This bike is practically a new one! Incredibly good condition, as expected in 2018. Made of Cannondale's BallisTec carbon, it's a beautiful blend of stiffness and lightness, without too much stiffness in the ride. Weighs in at 15 lbs, making it a very fast sprinter and accelerator. Highlight SRAM's eTap groupset for wireless, electronic shifting. This is the best product, and let me tell you, these components are awesome. Extremely easy to use and easy to pick up. Rolling on the Mavic Aksium Elite wheel set.