When spinning the real wheel on my road bike I notice a slight bulge, as in the tyre/wheel doesnt seem to be perfectly circular. I deflated, checked and reinstalled the inner tube and tyre to ensure it was seated as well as possible too. Given the age of my bike (about 4 years) I put it down to deformation of the wheel due to hitting bumps over the years. The deformation is only slight and dont feel anything while riding but is it something that needs to be sorted quickly or would you consider it a minor flaw?