Wait, you guys really want car compounds on MC tires?!
No, you don't, but you think you do. Car tires are HARD, they don't flex, as a result they slide easily when lateral forces are applied. Just the kind of forces applied during cornering of a motorcycle. Darksiders run very low air pressure to combat that, but it only goes so far, and ultimate lateral grip is less than a proper MC tire.
Someone did mention multi compound tires, and really, that is the right answer. A stiff center section with a fairly hard compound, with flexible shoulders running a softer compound would be the fix to our mileage challenged bikes. Pilot Powers, original lasted me around 6k miles on my Daytona, pilot road 2s lasted around 11k, and pilot power 3s have gone 5k and are barely worn at all, while have the most grip of the three models.
Tri-compound front and bi-compound rears would give 20k miles capability while not compromising cornering, but the cruiser market doesn't clamour for cornering ability so they won't make us said tires.
Just a mention, if you are a heavy hand on the Rocket in the low gears you will cut your tire life in half, even on a stock bike with no wheel spin. My Metzler was dead at 4k miles.... Lol.