Re: what happened to the topspeed????????? It's still a matter of final gearing. Since the MotorTrend article "Speeding", the MT900S Photon has had the clear rear 'gurney' removed, and a wing added, which should have a lower drag penalty. But, its still running the smaller dia. tires (smaller than the MT900R that ran 190mph at Daytona), so I'm not sure how much the top end will change, but the downforce should improve, with a lower drag penalty. I believe its also getting a rear diffuser too.