pman. I'd take the wheels into a local bike shop. All of them.
If you spin wheel (taken out of the bike and just holding the axle) it should continue to rotate for a long time ideally.
As others have said if that doesn't happen it is probably either the cones being too tight or the bearings in the hub being screwed.
The wheel you got from SJS should not have this problem - even sold as NOS.
Your post is quite vague but a bike shop should be able to at least diagnose the issue.
EDIT: I think the cones need adjusting as a guess.
@goodhead started
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pman. I'd take the wheels into a local bike shop. All of them.
If you spin wheel (taken out of the bike and just holding the axle) it should continue to rotate for a long time ideally.
As others have said if that doesn't happen it is probably either the cones being too tight or the bearings in the hub being screwed.
The wheel you got from SJS should not have this problem - even sold as NOS.
Your post is quite vague but a bike shop should be able to at least diagnose the issue.
EDIT: I think the cones need adjusting as a guess.