Road noise. Newbie requires info

[Kwicky]

You know how good your tyres are when you drive on that awful concrete section of the M25 in Surrey. That is if the traffic is actually moving

 

[CPJS]

The trouble with ear plugs is for me they block out all the sound….sound that I need to block out all the sound of bloody tinnitus!

I have the same issue, however, the noises made by riding a bike to the unprotected ear will make your tinnitus worse far more quickly than without ear protection.
Catch 22.
If you make your tinnitus worse you will pemanently suffer everywhere at all times.
Try some noise cancelling ear thingies, I have heared(sic) good things about them, see an audiologist.