I have ridden quite a few trails...C&O, GAP, ERIE,etc. I don't get to put in many long training miles preparing for my trips. Maybe 20 miles or so a ride BUT I make the gearing on those rides extremely difficult for me. I go with a 3 to 1 or 4to 1 gear ratio when training on a local rail trail. Trying to sustain a 15 mph pace with 2 in. wide tires. So for me those 20 miles it is an all out effort...I'm 63.