Hi, I recently bought a track bike of someone.
When I was putting the rear wheel on yesterday, I noticed that the wheel doesn't rotate on the axle, however, when I loosen the nuts on the axle it does. I'm completely new to all this so I'm not sure what's meant to be where and how tight/ how loose and what not.
Any advice would be great, I really don't want to damage the bike.

Cheers!