Yamaha Raptor 250 Top Speed

here is the GPS verified top speed of 60 mph on my 2008 raptor 250 se with stock gearing of 14/38. It has a gytr exhaust, gytr jet kit with air filter and pre-filter, gytr nerf bars, gytr heel guards, and gytr rear skidplate. Im running maxxis razr 4-ply tires with 9psi in the front tires and 5psi in the rear tires