You cannot run leaded gas in an 07+ bike, as the lead will coat your O2 sensors and make them fail, causing all sorts of ECM closed loop issues.

If you are running a tuner that eliminates the 02 sensors, then you will be fine.

 

I have no o2 sensors, (PCIII) but I'm gonna use unleaded for now, I haven't seen anything but opines, (and I appreciate them) but I will try the high test unleaded if I do it until I see some info that is more them opinion, either way. I don't think it will hurt anything either but safe is better than sorry.