>>1688446My homemade 32H 29" Crest mk3 wheels, incl. hubs but not the rotors (assume standard method to weigh), are 1625g, which is the same or 100g heavier than many carbon rims.
However, the rim depth is an anaemic 16mm, with an internal width of 21mm. I don't know how sub-optimal these would be on a gravel bike with 40mm tires. The carbon wheels would certainly look cooler though. Still leaning toward buying Chinese carbon wheels, so long as they throw in some spare spokes.