Hey Everyone,

I just purchased new omnium cranks from bikeisland and i'm having some issues installing the GXP BB that came with it.

After removing the old BB from my Kilo TT, i cleaned the shell and lubed everything up.

Now i tried to thread the drive side of the BB and it tightens completely before the bearing cup even hits the BB shell. Before it gets to that point it threads smooth and just fine. The non-drive side threads all the way in no problem.

Any advice? Could the BB shell or BB itself be damaged? The crankset didnt come with any spacers or anything. Just wanted to get some advice before taking it to the lbs or trying to tighten the drive side cup even more with the tool.

Entire BB


non-drive side cup


drive side cup