Yea, could be, but they are tinier bolts than what you find normally on a stem, which I think was the reason given - that going that small increased the liklihood of stripping with hex, but not torx. But I can't say from experience because the C260 stem I used for a while had Torx. I got rid of the stem because the design almost defeats the purpose of a open face stem and it's a PITA to get bars mounted on. Certainly I didn't need whatever design advantages they were trying to accomplish so wasn't willing to use it. I switched back to a normal WCS stem.