I did TAT last summer. I decided to do TAT at very last minute with so little preparing going into the trail with no knowledge or whatso about what I was about to face. I took KLR650 with me and my budget for the trip was $1,000 and said to myself if I reach $1k I would call it a quit. I started TAT on July 8th and finished it July 29th.
It rained the first few days when I was doing Tenn, Miss, and Ark before I got through the rain. For the rest of the trail, it never rained again. When I hit Moab, UT I had reached $1k budget but decided to push on and finished the whole trip with $1,400 spent.
If I was to do it all over again, I would use 250-450cc bike, none more. KLR650 was heavy in some section but still doable. If you plan to sleep in motel every night then don't bother carrying too much load but hygiene stuff, 1-2 days of town clothes, and a riding gear beside laptop and TAT maps. But if you are traveling frugally, bring tent and sleeping bag but forget cookware as access to stores and restaurants are plenty. I didn't cook when I stealth camp. I slept in motel for 4 nights. I had a 3 days break in Moab and I slept in Hostel for $30 ($10 per night).
Weather- lightning come and go. No specific season for lightning. Colorado is impassable before mid June but is doable after mid June to end of Sept. Oregon is cold in the morning during July in some area (was freezing and frost on my tent when I woke up early in the morning). Rain comes and go too.
Good luck and feel free to ask any question!
Last edited by wkheathjr; 25 Feb 2013 at 01:32.