If you could choose for majority flat TT's:
Unfortunately confined to Zipp..
Get the proper disc, there are basically no circumstances in which you want anything else on the back of a TT bike.
I know I know, I had just thought the tubeless watt saving might make up for it.
It's strange Zipp haven't brought out a tubeless disc.
@gbj_tester started
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If you could choose for majority flat TT's:
Unfortunately confined to Zipp..