What is the widest front rim that can be put on a 2004 fxst .18 x ? .Im possibly going to be changing out the frontend to a heritage , but I just don't know yet .Im running a 18x4.25 150 /70 rear and I want to match the front as close as possible .

 

You can run a 18x3.5 with a 140 front tire...... Believe the Honda Ruyne (SP?) runs an 150/18 tire on the front, but it is pretty expensive (about 230 or so on eBay)