Since I'm never going to qualify for Kona, my Tri bike has a disc. That, and I race considerably more TTs than I do Triathlons, even if the Triathlons are my "A" races.
The other distinguishing feature of a Tri bike is the ugliness
@ewanmac started
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Since I'm never going to qualify for Kona, my Tri bike has a disc. That, and I race considerably more TTs than I do Triathlons, even if the Triathlons are my "A" races.