Monocoque, high modulus T700 carbon fiber construction. Internal cable routing for STI/Ergopower levers. Ergo-airfoil/wing top shape for aerodynamic comfort with Nest Zone for palms and Thumb Zone for on-the-tops control. Variable Radius Concept, round profile for on-the-drops comfort and control with extended ends for added positioning. AVS-Gel (under tape / top of the drops) strips for added comfort. 220g @ 40cm: all measurements are center-to-center