Originally Posted by
bikemig
I'd run fatter than a 25c; I'd run a 28c or a 32c for a touring trip. I'd also just use a box and junk it and get a new one at the other end. I've done that and it works well. You don't really need a triple depending on where in the Netherlands you go. It is, as others have pointed out, pretty hilly in Limburg.
Hills are decidedly not an issue. I punched in a quick ~400km loop through The Netherlands, there is less of an elevation change through the entire thing than my uphill 8 mile return leg from my couple times a week after work microbrewery runs