There's a book you can buy from Adventure Cycling (on this website) called "Bicycling the TransAm" by Stephanie Kirz. It's written to go east to west without camping tho she and her husband brought camping stuff. I emailed to ask her if she ever used it but didn't hear back. Be sure to buy the third edition (most recent, 2009) but some things have changed so be sure to get the Adventure Cycling maps also and don't forget to read the addendums (addendums contain the most recent closed motels, new restaurants, etc that people out riding the route report back to AC). You could plan to go in her footsteps.
My husband and I just did the first half riding west to east (North Bend, OR to Pueblo, CO) and kept a blog listing daily mileage and motel name & cost. We were only averaging 40-50 miles a day, our 2 longest days were 71 miles: http://bicyclelife.topicwise.com/doc/yumadons1
If you don't want to camp, you'll be glad you left your camping gear at home. We met a Londoner, Michael, who said he had intended to camp but it was so hot he ended up in lots of motels & wished he didn't have to carry so much stuff. His blog is:www.transamerica2011.blogspot.com
Your crucial motel reservations will be in Yellowstone Park, Yellowstone Park lodges can book a year in advance. The lodges that are on route are Grant, Old Faithful Inn, Old Faithful Lodge, & Old Faithful Snow Lodge. You'll have to estimate when you'll be there and make reservations (you can search for availability & make reservations online at www.yellowstonenationalparklodges.com
). You get a full refund with 24 hour cancellation so if you can't narrow it down to the day, you can always reserve multiple days and then cancel
the days you don't need once you figure out exactly when you'll be there. If you're a strong rider you could probably make it all the way from Flagg Ranch (only one hotel there so it will need a reservation too, www.flaggranch.com
) to West Yellowstone (a town just outside the park with lots of motels, no worry about reservations). If you look at my blog, you can see where to stay in Jeffrey City where the motel has closed.
I think you'll have a way easier time going east to west cuz you can follow Stephanie Kirz's book. Since we went the opposite direction, I had to study the elevation sections of the AC maps VERY carefully to make sure we didn't bite off more than we could chew. The west is really the challenge motelwise because towns can be far apart and the route passes thru some highly desirable tourist areas that can book early (ie Yellowstone, Tetons, & the stretch along the McKenzie River in Oregon. I booked my reservation at The Caddisfly in McKenzie Bridge in Feb & they were already full but nice enough to give me a "park model" (tiny mobile home) that they use for their grandkids.
I made what I considered to be the critical reservations way ahead of time (the aforementioned places and weekend nites in places with just one or two motels). I had most of the daily destinations penciled out, but not necessarily the motel reservations made. On rest days, I'd lay out the maps and make phone calls a few days ahead. For the eastern half next year (Pueblo to the east coast), I don't anticipate making any
reservations way ahead of time. Midwest towns are closer together and not as touristed. Plus you can get some serious tailwinds in Kansas which I'd like to take advantage of
Look on Crazy Guy On A Bike website & check Fred Werda's journals, he did 3 TransAm crossings and
mostly moteled it. Also look at Stefan Steen's journal. He didn't do the TransAm, he & his dad did another route from Washington state to New York with only seat bags! Don't worry about breaking down in the middle of nowhere, there is nowhere on the route so desolate that someone won't come along in a truck and give you a ride if you need it.
You will have a great trip!