Some you can go up 10mm wider if you have the clearances . Here is a visual calculator to compare two diff sizes with
http://www.tacomaworld.com/forum/tirecalc.php
The 130/60/13 has plenty of tire choices . Here is a site with many listed
http://www.motorcycletire.com/merchant2/merchant.mvc?
I would use the same size F&R . You have to have the tire deflated in order to mount it .
I also like to run a matched set instead of new with an old and of diff tread pattern