Just need a bit of help with the installation as videos/guidance all says I’ve done it right but it’s can’t be. Got a 73mm bottom bracket with a GXP Team BB so no spacers required, new bb installed exactly as per the old one. Sliding the cranks arms on, the drive side doesn’t slide tight up against the outer bearing. I’ve tightened up the non-drive side and it’s going tight. Cranks spin freely with no play. Just concerned as there is a 2mm gap between the spider and bb and I don’t think this gap should exist.

That gap is meant to be there. The DS crank just floats in the DS bearing. Make sure you crank up the NDS bolt good and tight to the correct installation torque and you’ll be fine.

Ah right, that would explain it then! Thank you

Yes I deeds, I used a torque wrench to tighten and was surprised just how tight I had to go.