https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
I've bought 2 of these, when I built wheels for my wife and my gravel bikes I wanted to use new XT hubs which are usually reliable. With mine the front hub slipped into spot with no trouble, with my wife's there was a drip that was in the way, turned out to be a touch of epoxy but it scrapped down perfect without scratching the carbon and fit perfect. The tubes are a little trouble to fit in, have to give a real good push and don't easily come out.