Can't find the Roval serial number on the Rapide CLs that came with my Tarmac

I just built my new SL7 yesterday and I'm trying to register everything tonight, but I don't see the serial number on the wheels anywhere. They did not come with the sticker barcode that I've seen on the Roval website.

Update: called Specialized support and they told me that because the Rapides are stock wheels, I should be fine with just registering the bike.