Multiple suggestions for protectors have been made. ATB really need something robust, so the wraparounds, padded or cloth type work well. There is a thick clear vinyl tape sold for this purpose that I once used which is good for road bikes where slap is less frequent but it had a low tack adhesive and peeled off in a short time. Packaging tape tends to the opposite: it is very thin and removable over the short term but as months go by, and exposure increases the tape tack is stronger than the tape and getting it off is a mess. The OEM tape on my Trek 5020 is like this, and is all torn up after 16k miles, plus black and grotty to boot. Electrical tape is in between and if an acceptable color available is a reasonable choice. Steve