The Dirty Reiver takes you on a 200km journey with 3500m elevation gain. Expect to see about 1000 riders ready to roll. The terrain is pretty rolling with few flat sections. High and low gears needed. We go for 42t up front and 10-42 in the back. There are fast sections, but also loose gravel and rough back roads. You’ll be using everything a gravel bike packs and your friends for the day will be 40mm wide tires with roughly 35 psi, the Grit suspension fork and geometry that oozes with control.