Originally Posted by PeteHski

They built them for both markets, which is why they fit them on the higher end Aethos builds too. Like I said, I understand their reasoning (at least in the short term), but it doesn't make a lot of commercial sense when pretty much all of their competitors are making tubeless compatible rims. It's not a big deal, I'm just curious how long they will stick to this concept, which seems totally at odds with what Specialized have been doing in recent years. Their pro team riders have been regularly chopping and changing between tubed and tubeless tyres depending on road conditions, favouring tubed for outright speed and tubeless for better puncture resistance. Specialized themselves still appear to view tubeless as the end-game, so these rims could well end up becoming obsolete in the near future.