New Rear Gears

I am running 4:30 on the street with a 29 tall tire and its not bad. I stay off the freeway as much as possible and take main hiway when I need to go across town. But this keeps me driving slow to avoid tickets as every time I take it out of the yard I end up with either cops behind me or some old fart wanting me to pull over to here about the one he had in his GLORY DAYS