Phnom Penh to Svay Rieng: This trip is a fairly easy lone for motorcycles, as you can easily skirt the potholes that slow down the cars. Keep those eyes open, though, as the share taxis that ply this stretch from Phnom Penh to the Vietnam border all seem to be trying for the Cambodian Land Highway Speed Award. They do fly and they don't let a little thing like a motorcycle hinder their flight.