I'm preparing to install SRAM Rival group on new bike. This is my second Rival crankset. The first, on my other bike, installed with no problems. BB quiet as a mouse.
As you'll see in the video, when spun there is a scraping noise. Same noise also present when crankset fully installed and torqued to spec.
I've wiped and re-greased the bearing surfaces, there was a bit of grit present. This is a brand new group.
Also: The manual states there are two bearing seals -- one for each side. The drive side one is obviously present. The non-drive side one doesn't appear to be there (see pic). I received the bb as you see it in the pics.
I have the see-through plastic center piece (with gxp logo) installed so the fatter lip is mated with the drive side cup.
Any ideas on how I can troubleshoot this scraping noise? Thanks.