Gravel bike with double configuration.

For heavy gravel:
Giant CXR1 carbon wheels, 21mm internal width, tubeless with Tufo Thundero 700x48 tires, Schwalbe valves, and 11-speed 11-40 cassette.
KS dropper post with under-seat lever, 100mm travel (not in photo), serviced and perfectly functional.
In this setup, it weighs 10.7 kg.

For light gravel/road:
Seatpost shown in photo.
Aluminum wheels (but light, weighing 1780g for the pair) with 19mm internal width, Muc-Off tubeless tape, Muc-Off valves.
With Shimano 105 11-speed 11-32 cassette and super fast-rolling Tufo Speedero 700x40 tires.
In thi...