Colnago Y1Rs Seatpost - 0mm Offset

Colnago Y1Rs Seatpost - 0mm Offset is the OEM carbon seatpost built specifically for the Y1Rs aero road frame, matched to the bike's tube shaping rather than adapted from a standard round post. It's a full carbon construction at 300mm long and weighs 190g, with a custom aerodynamic profile designed to blend cleanly into the Y1Rs seat tube and keep airflow attached around that section of the frame. Because the shape is proprietary to the Y1Rs, it isn't interchangeable with standard seatposts on other bikes, and swapping it for a generic post would compromise the integration Colnago engineered into the frame.

This version comes with 0mm setback, putting the saddle directly above the seatpost's clamp rather than set back behind it, which suits riders who prefer a more forward saddle position or need to compensate for a longer top tube or steeper effective seat angle. A 15mm setback version is also available for riders who need the saddle positioned further back. At $400, this is the correct replacement or spare post for Y1Rs owners who need to match their factory setup, whether that's after a crash, a fit change, or simply carrying a backup for their exact frame.