Quoted By:
You rarely need four-wheel-drive, as most dirt roads are pretty smooth and a reasonable grade, but it is a good idea to limit your speed to about 25 MPH. Pic related, I was going a little too fast around a curve, slid sideways into a rock, blew out my sidewall, so drove back to pavement around 10-15 MPH on the shitty spare that came with the Prius, 40 miles of dirt road. I now carry a full-size spare, drive conservatively on dirt roads, slow and scenic. The good news about this is that Les Schwabb tires replaced the tire for free, part of their "road hazard" warranty, which includes dirt roads in Idaho.
