Finished a conversation with the parts department on the differences between the Softail Heritage tires and the new Road King tires.

I get about 9-12k per my rear tire, and its a 3-1 ration on my front (for every 3 rear, 1 for the front).

My buddy's 2011 RK he replaces front and rear about the same time, he put 20k on his tires.

He said the reason the RK tires last longer is because they are dual composition tires, harder in the center, softer on the sides.

Any truth to this?

 

Yes the dual composition tires are a blessing for us long haulers. I super slab between Fl and NJ often on a couple different bikes. My tire life has gone way up since going dual comp tires.
Put a set on my Busa which was eating a set in 4k now Looks like the BT-023 will go 10k + easy. My Heritage needs shoes soon and you can bet a set of dual comp tires will be the choice!

 

I've heard the new touring bikes with the wider rear tire are doing pretty well on millage. I'm running the D E3 on my Heritage right now. It just went over 10K miles which is better than the D402s did. Already bought a new set of Michelin Commander IIs to put on when I'm ready.