Tyres, Brakes and Suspension » Front disc movement query

I am currently repairing a damaged 2016 R1200RS that I brought at auction here in Australia. I have noticed that when rolled off the centre-stand whilst holding the front brakes on a little I felt a slight clunk. At first I presumed I may need to tighten the steering head bearings but on closer examination I found the front discs have a very slight amount of freedom to rotate on their bolt mounts. If the bike is on its side stand so the front tire is rigid on the ground and I grab a disc with both hands I can move it clockwise and then anti-clockwise on its bolts. Its minimal (a couple of mm or fraction of an inch at most) but seems to be what is creating the clunk when I rock bike of its centre-stand whist holding the brake lever on. I have checked the torque settings on the bolts and they are correct. Is this normal for the front discs on this model?
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Thanks Wessie, I knew of them but never had them explained in such detail. My most modern bike prior to this is a 92 R100RS. Thanks again.

brakes on BMWs have floating rotors. No problem.

It would really shock you to see a set of full floaters. I switched my semi-floaters to full floaters with aftermarket buttons on my Ducati. They flop around like a fish out of water when you’re pushing the bike around

As already mentioned from other users, it is normal to observed that behaviour. Unfortunately it does not mean you don't have problem on your steering bearings or on the fork bearing/bushing. There are other metods to check it. You can see the haynes manual or bmw service manual.

You could try this amongst other methods:
Run the front wheel up to a wall, apply brakes and push hard. Any clicking/movement you experience should not be the floating discs but will be something else, probably head bearings. If they are loose, you should be able to feel this by placing a finger on the top bearing cover/headstock while pushing. It could also be a loose front wheel where someone has neglected to do the bolts up properly (thank you a BMW dealer in the South of England!) or movement in the forks.

Zitat von DJBee im Beitrag #8

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you should be able to feel this by placing a finger on the top bearing cover/headstock while pushing. .

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Thanks for all the additional advice. I have done the "place on centre stand and push and pull the forks" but will try the front wheel against the wheel test. But pretty certain its the floating discs as I can make the same sound that it makes when coming off the centre stand, by grabbing a disc and twisting it clockwise and anti clockwise.