Designed to support riders in an aero road riding position Full saddle cut-out minimises soft-tissue pressure allowing for a more powerful, rotated position Two sizes designed to align saddle with bone structure for both men & women & avoid soft-tissue compression Oversized carbon rails for lightweight strength. Specific seatpost ear clamps required Lightweight carbon-reinforced shell provides perfect balance of weight, strength & compliance Minimal pro-level padding offers sleek a profile that shaves weight Available blendr accessory mounts to cleanly integrate rear light