Don’t include the slow, twisty sections in the long days, if you can help it. Things like the Tail of the Dragon really, really suck time. Especially when you get stuck in traffic.
Lolo Pass - Watch out for the fisherman in the mornings, and the float trailers later in the day. Early morning is best, just ducks and a few fishermen to deal with.
Yellowstone/Tetons - huge traffic mess much of the time during the tourist season. Do not pet the nice Bison!
Don’t wear your water if you can help it. Strap to a pannier top, put it in a tank bag, pillion seat area, etc. Or just make up a hydration jug from cheap stuff at the Walmart and Home Depot/Lowes. Some fittings, plastic freezer tubing and a bite valve plus.a cheap half gallon jug. You can remove a footpeg rubber and bolt a cheap thrift store pan/pot to the peg that the jug fits in. A bungie or strap to hold it in place and your done. I’ve made up several over the years including one for a GSA for my wife using her preferred 1 gal Bubba Keg. I just use cheap jugs from ebay or walmart.
In this crowd, you’re talking about a 10 day trip. You’re taking 50 days, so consider the “what if’s” of those places you need to be. What if you’re late? Can you work your route or schedule to give yourself shorter days? Plan on what to do or skip if you’re running late or know a couple of days before that you need to get someplace on time and have to cover the distance in limited time.
Usually we suggest riders work up to doing a long day. If it’s been a while since your last 500 mile day, or you’ve never done it on this bike, find the time to go for a 300+ mile ride and see what bothers you, if anything. Fix what bothers you, go for a longer ride. Continue until you’re comfortable cranking out 700 mile days.
Some reading on hydration systems that will give you some ideas.
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