Just looked and yep, those are dual compound on the front too. Slipped right by me.
I guess my attention has always been on the rear tires as they are the ones that tend to wear badly in the center, especially on the highway. I have not noticed the same thing on the fronts even when they are single compound tires. The one set of Angels I tried wore pretty quick on the back but the front was OK so I thought just adding a harder strip of rubber in the center of the rear tire would be sufficient to really improve things.
Then again, maybe the front tire is really worth what I paid for it.
Brian
I thought that the PR2s were also dual compound front and rear?