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@TheFinalHour
I've had a Sram GXP bottom bracket for about 10 months / 6000 miles which started to grind and creak so I took the cranks and bearing cups off of the bike to clean all the crap off. When I put it back on I noticed that as I tighten the crank bolt, the actual bottom bracket starts to seize and the cranks become really difficult to turn.
I know the GXP system has a bad reputation, is my particular problem a common one?