Is Drilling Carbon Safe?

About nine years ago, we published a tutorial on how to add bottle bosses to a frame that doesn't have them. With a decade of experience, what do we think about the idea now? Bottle bosses are one of the best ways to mount accessories to the bike, like our own Polymount or BTA riser. Check out what we did in the video above, and let us know if this kind of thing you'd consider doing to your own frame.