hey people, I have got a t-pro 05 with problems with the bottom bracket area, recently my bb has been creaking so i bought a 127.5mm UN53 off chainreactioncycles, saturday i fitted the new bb, all went ok, abit loose fit. Today when i got back from riding i sore that the bb had come loose, so off came the arms and i took the bb out to check it over, when i took it out there were thin metal rings that look like they had come from the frames thread, cleaned it all up and the bb all looked good so i placed the bb through the frame part into the other cup and started to tighten the bb, when the cup got tight to the frame it kept spinning, so i got the bb out again and put the original bb back in, it went in fine, and i took it for a ride, there were signs of loosening again. my forts There is two things i think it could be 1)I put grease on the threads (helps it come un-done) :$ 2)the threads have gone! Q's -I need your expertise to guide me on what i should do?ALSO Are there to different size thickness shells? -If the threads have gone, then where and how can i get them re-threaded? Help people