Lol, bicycles already have a top tube. This is mostly for a “women’s frame” bike, which are questionable enough to start with! Unless you bike in your prairie dress, of course.
Hey, it’s my EDC! I love mine in the Olive Drab. Pretty much the perfect size and shape for an everyday carry, though sometimes I feel like removing the safety pin just for ease of use". Hard to beat at that price.
I also saw a tip about reversing the clip so that you can more quickly take it out of a pocket and more easily flip the blade out.