This is making no sense to me. I just got a GXP BB and Omnium crankset in the mail. I threw them on the frame today, but the only way I could make the crankset fit together was by threading the cup marked "Non-Drive Side BSA" onto the drive side of the bike. Are the cups just marked wrong, or what? Here's some photos.

NDS cup marking and bearing:


NDS Cup by yummygooey, on Flickr


NDS Bearing by yummygooey, on Flickr

DS cup marking and bearing:


DS Cup by yummygooey, on Flickr


DS Bearing by yummygooey, on Flickr

I feel like the markings on the cups are backwards of what they should be. There is no way I can shove the Omnium drive side crank arm post tube thingy into the "Drive Side BSA" bearing. It does not fit. But it fits and slides nice and snugly into the "Non-Drive Side BSA" bearing.

Also, the "Drive Side BSA" cup doesn't even thread onto my bike's drive side BB shell. I tried, and I'm pretty sure I got cross threading.

What's the deal?

P.S. Pardon the grease everywhere. My camera does not take flattering pictures.

P.S.S. Here's a picture of the chainring arm/chainstay clearance. Tight.


Omnium Clearance by yummygooey, on Flickr