Cinelli King Zydeco Gravel Frameset
From the manufacturer:
This unique frame allows you to ride fast on different surfaces: asphalt, white roads and rough terrain thanks to the possibility of assembling 700c and 650b wheels with tires up to 2,1”. The carbon monocoque construction and its racing geometry make this frame light and extremely fast. Perfectly suitable for long distance gravel races and also ready for bike packing explorations.