I am restoring my 77 RC.  Would like to get some tires similar to what it has,  but don't think an exact match is available.

Front:  5.50 x 16 Goodyear Triple Rib.  

Rear: 12.4 - 38 on 11&quot; rim.  Goodyear Traction Sure-Grip.

I have looked at the Miller Tire website ( <!-- w --><a class="postlink" href="http://www.millertire.com">www.millertire.com</a><!-- w --> ) and that may be the best place but since none of the pictures quite match mine, thought I would ask for ideas here.

Thanks.

Tom