Softride Bikes What Bikes Are Illegal In Triathlons? Zipp, Softride, Y-foil?

What bikes are illegal in Triathlons? Zipp, Softride, Y-foil? - softride bikes

I am thinking of buying a bike softride kind, but I'm not sure whether they are legal for triathlon, and I Leisure (international) speed and distance. I have the rules and can not give meaning to what we want to say when someone riding experience softride Zipp or foil and Tris have?