BBiker from Reston, VA on 2/10/2020 12:20:54 PM:
DCSwindler....I'm also a "larger framed" biker, 5'11" and 225, muscular, late 40s and a friend and I have twice ridden the Pitt to DC Gap trail and C&O in 4 days. The first trip, the most I ever rode was 20mi in a day and we were putting in average of 75mi/day. We don't pretend to be even average lever bikers, but wanted to see if we could do it...The 2nd trip, I trained better...with the longest training being a 40mi/day...
Like someone else said, you would benefit from some longer distance training, and the longer daylight hours in July will help, as avg days were about 9-10 hrs for us. Cumberland to DC is definitely doable in a 4-day time-frame. Weather was hot, but shaded and we didnt have any rain. The washed out bridge/trail at Brunswick was passable on foot by shouldering the bike and tiptoeing across the rocks to the other side. The trailer might be more difficult unless you made 2 portages. Good Luck!