Join Date: Feb 2014
Location: NW United States
Bikes: 1996 Trek 6500, Hybridized
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efficiency of dirt or gravel versus pavement
i am riding from portland to jackson, wy. about 10% to 15% will be on dirt and gravel, not pavement. is there a way to estimate speed on country dirt road from speed on pavement ? for example, is dirt road riding 30% more work ? i have one section that is about 80 miles of dirt road.