After 9000 kms the stock Roadsport 2's were toast so I shopped for new tyres. Kept coming back to Bridgestone Battlax T32's. Those are what I bought.
Another poster asked "Why the hate for stock tyres (OEM)? I did not hate the stock tyres because I did not have anything to compare to. Now that I have the T32's I can say from experience "Don't hate your stock tires; use them up, then go to one of the usual higher spec replacements." I am very happy with the Bridgestones, probably Michelins, Dunlops, Metzler, and Conti offerings are similarly good.
When your original tyres are used up, don't put off replacement - you will be very pleased with better rubber. BTW I got T32's, not T32 GTs - they are for heavier bikes