I had an 01 640ADV for 5 years / 15,000 miles only 3,200 miles on it. Plus it comes with racks, windscreen and Gobi hard bags. How reliable are these bikes? Never stranded me and I went solo into some remote places. I don't want to be tinkering with stuff all the time, Don't buy this bike I have 20,000 trouble free miles on my KLR and I love the reliability, and low cost maintenance. It has never let me down, but I hate the weight, brakes and suspension (or lack thereof) The KTM suspension was really good after an $800 tuning. The ADV weighs about 400 lb with gas, doubt it's lighter than the KLR. The Enduro is lighter. Realistically, how many miles can I expect to get out of the engine before a new top end, or total rebuild? I had a lot of minor issues but didn't have to open'r up. Water pump, seals, tstat, wiring breaking, carb parts wear out, linkage bearings, lot's of rear tires... What kind of fuel mileage are you getting out of yours? 40 mpg How viby are these bikes a 80 mph? Is it bad enough to make your hands go to sleep? When I first got it it put my hands to sleep a little. I rode 1300 miles the first half at 80. It took 3 days after the trip for my body to stop vibrating. It smoothed out a little with miles, and the Renazco seat helped. How difficult is it to convert a 640E to a 640A? How strong is the subframe on the 640E, is it different than the subframe on the 640A? Are they interchangeable? Are there tanks of 5 gal + available for the 640E? I want to keep my 300 mile range if possible. If I was to do over, I would get the Enduro with 5 gal tank. Lighter and better balanced. That would be 200 mile range maybe. I don't want a high maintenance nightmare. .......... I wouldn't call it a nightmare but it's not a Honda or even a Kawasaki. If mechanically sound, would this bike be a good one at $3,800? I sold my ADV with 18000 miles for $3500. Enduros go closer to $3000 even low miles ones. The Gobis are worth something.