The GXP (Giga X Pipe) bottom bracket on my Jamis Comet triathlon bike was clicking when under torque such as climbing hills. And it was getting worse. The bike shop confirmed my belief that it was the bottom bracket. So I ordered a new one. I finally got the time to replace the old one. Removing the old one was a bit of work as one of the bearings seemed to be stuck to the crank spindle. It took penetrating oil and some vise grips to get it off the crank spindle. Installing the new bottom bracket was pretty easy. The tools I used were a Park Tool BBT-19 bottom bracket tool with a ratchet wrench, an 8mm Allen wrench, a rubber mallet, and a screw driver.
**If the video was useful or interesting please give it a “thumbs up” and consider subscribing.