I don't have any experience with either disc, but have you considered the HED all carbon disc? That is worth a look in my opinion. That would be what I would go with if I had disc brakes on my tri bike.

To heavy for me : 1280 gr

I had a 321 rim brake and liked it a lot.

Switched to a P5D and went with Aerocoach Ultra.

I liked the monocoque construction better than the cover type.

If I did it again I’d buy Blur V3

I ride the dt Swiss and would purchase it again over anything else. The construction of it is top notch. And with the help of swissside your likely splitting hairs between other top end discs.

But like everything, if your not testing you are just guessing.

hi, what did you go with at the end? i am at the same point now as you - deciding between roval and dt swiss disc wheels

Dt Swiss 1100. Similar at the Roval. I’m in Cervia this Saturday. I will give you my feed back !

I've ridden the DT Swiss for over a year now. Zero issues, but can't compare to the Roval disc. It's structural, sounds awesome, and has a nice little carbon fiber cover for the valve stem that's removable without tools. The only downside is the hub noise, it's super loud and the hollow disc core amplifies the sound (if you care about hub noise, that is).

One of my fav things about the Zipp disc is the noise of "Whhoomf whhoomf whhoomf!" It just sounds awesome when accelerating...but realize it has zero to do with performance, but has everything to do with enjoyment factor if you're into that...but is does ruin the "stealth attack" coming from behind someone you're looking /hoping to pass and get a jump on them so they don't try to hold on...