If want to transporting multi bicycles which equipped with different thru axles,buying a 4 in 1 fork mount instead of buy 4 independent products could save some money. But most 4 in one mount you can find on the market has a fatal weakness: to much end cups they may getting lost easily, and they also have a problem of misalignment of the centerline, it won't be that smooth to throught like a one-piece-tube.