Trispokes tend to work well in well designed bikes so you're unlikely to be giving up time, do make sure you have a narrow tyre on it, if it's clincher then put a Conti Supersonic 20mm on.
The H3D in that picture (it's the deep one, not a standard trispoke) is as fast as a front disc in the T4, but easier to handle and lighter.
It would have to be a tub version. I think the Plasma 3 is a pretty tidy frame and well designed so I might go looking in the new year.
Lovely bike BTW.
Trispokes tend to work well in well designed bikes so you're unlikely to be giving up time, do make sure you have a narrow tyre on it, if it's clincher then put a Conti Supersonic 20mm on.
The H3D in that picture (it's the deep one, not a standard trispoke) is as fast as a front disc in the T4, but easier to handle and lighter.