Can you move the bike by pushing it? Is the back wheel well of the ground when the bike is on the centrestand? Have you got a hugger fitted?
Have you tried running the bike in gear on the centre stand to see if you can spot/hear anything odd
Try slackening the rear wheel spindle so it can turn then try moving wheel, if it's seized bearing the wheel should turn more easily. Remember to tighten spindle afterwards before riding bike again!
Thank you guys. Your suggestion probably will be the right one.
Bearing may be the case or something in the rear axle. I have ridden 20 minutes with low pace to the nearest motorcycle garage. The guy (Keith Manning) has loosen the rear axle spindle bolt a little and the wheel moves freely. That discards chain and/or clutch.
Either bearing or something else hapenning there. And the bolt and the axle both were very warm.
Left it with the mechanic it is too complicated for my skills. I know you will say its easy to change bearing, but I do not have the tools and prefer a mechanic to do that