It's a secondary road I choose to ride. I have two blacktop options. The fastest would be an 8 mile stretch of county road with no shoulder, it's fogline and then gravel shoulder. The other option has wide shoulders but there's a 7 mile stretch that's on a state highway with lots of traffic. It's safe to ride on with the wide shoulder but the noise can be deafening. The gravel option has better scenery, more wildlife and on a bad day I may be passed by 2 cars. I'm running 45's on my Disc Trucker which are awesome on gravel but slower on the pavement.