I believe I have seen it in one picture and there is a local guy that uses tennis tape on flats. Ignoring it being unethical why is it silly? People put grips/tape on tracks bars, tape on bullhorns, tape on drops, and only grips on risers. Why is it ok on every other type of bar? This is an honest question. Comfy grips are comfy, I can understand that, but I'm just wondering.