After 65k (40 miles) I got to small town Delta Junction where I changed the spoke and got air at a gas station (I can't get enough tire pressure with my small hand pump); however after 100 meters another spoke next to new one broke - not happy! I changed the spoke and decided to adjust the tension on the rim a little - with the heavy luggage it's always a bit risky but there seemed to be no other way; and luckily it worked fine.