I am running Maxxis MA-P1'a (235/55) on the front of my Indy SS. I had way too many traction issues with the RS-A's. The MA-P1's hook up nice but they are only H-rated so you are limited to 149 MPH instead of the 189 MPH for the W rated tires. I am really happy with the Maxxis tires thus far. Good thing too, they are rated for 60K miles and I gave $255 for two tires mounted, balanced, road hazard, and lifetime rotation.