Tire slipping - Help!

make sure the tires are warm

I switch to michelin pilot power 2ct's, never looked back

make sure someone didn't put tire polish on them or near them.

true story.

I would certainly check into the wear of your tires, and the pressure and always make sure they are warm before you start leaning over too much. One thing that no one has really commented on is rider technique. A lot of time technique can be the reason why your bike might be acting up. Specifically, your body position on the bike along with your throttle control can have a huge effect on whether or not the rear tire slides. How would you describe your body position and throttle control and how might that influence the sliding you are feeling in your tire?

Misti

Agree with everyone else. The tire is the problem they are junk. When I had my 2002 R6 I had 208s and the same thing was happening to me, they kept sliding out from underneath me. So then I switched to Metzler M1s which at the time were pretty new and damn that was a night and day difference those Metzler M1s till this day were one of my favorite tires I've ever owned.