had a three year old gxp bottom bracket replaced on my pompino a few months ago but i can't seem to stop it it creaking.
i've removed the bb, greased bearings and fitted it to old faithful and its normally fine for about 1/2 an hour but then the creaking from the bb will start again, any tips on adjusting this would be a great help

Try spraying around the BB around with WD40, spin the cranks a bit and wipe it off. It worked on our (road) tandem. Not been impressed with the GXP BB's tho, replacing them with Hopes…