Google fiberglass shops most do carbon as well ask to purchase mat and resin from them. Sand the damage and to the post and at least 4 in out and around the damage apply your resin and matting in about 3-4 layers alternating length wise around the damage and the whole tube. I used to work with fiberglass and carbon in the boat industry for years. The repair is simple to do youtube some tutorials its easier than you think and much better than some gimmick tape.