96" S&S.
Got one of these for the back. Cleans it up nice:
What brand is that? I've heard bad things about some of the cheaper brands. No matter the brand, make sure you have the chrome blasted off the bolt threads before you install them, the chrome gets in the way of the loc-tite and the bolt will back out and fuck your caliper.

BTW, I run the Exile cycles sprotor on mine, it does clean it up real nice.