That hydro adapter is a lot cheaper than I thought it would be. I was looking to upgrade a family members cable brakes recently with some cable/hydro brakes, but it was actually cheaper just to buy the hydro version of the group set off eBay (brakes and shifters). But looking at that price, I might just go with that. It is a gravel bike, so they already have a lot of things attached to it, so shouldn’t mind just sticking those things under the handle bars.