Didn't Glen start with something other than the 650GS?
Aye. He started with a KLR650 which he rode down to Nicaragua and back to California on a "shakedown cruise". He used that same bike when he started South America and was still on it when "The Columbian Thing" happened and they stole it from him. But it was already having problems and starting to break down by then.
After he got released and was hanging out at Ricardo Rocco's place in Quito, Brad shipped him his bike, which was another KLR setup exactly the same as Glen's first one was and was being prepped to join up with Glen in Panama. If you saw both bikes side by side, you could only really tell the difference because in the toolbox bolted to the back, I scratched "#2" into the fresh wet bed liner material right after the inside of the box was sprayed. It was a 3-day mad rush to get the bike prepped, crated and delivered to the shipper in Los Angeles - and then U.S. Customs sat on it in Florida for 6 weeks before they let it get shipped to Ecuador. We were pretty sure the fix was in and US.gov didn't want Glen hopping on his new bike and heading back up into Columbia to retrieve #1. Maybe they figured he needed a cooling off period.
#2 did okay, but by the time he'd hit TDF and was on his way back up along the east coast it was already having problems. It eventually broke an alternator mounting boss inside the case which he got welded up at a small dirt bike shop. By the time he got to Manaus it was pretty much falling apart and he was deep into a "NO MORE KLRs" mood.
After a thousand mile boat ride up the Amazon, he flew to Panama and picked up a new BMW 650 and hooked up with Brad. Brad had come down to ride the last leg home with Glen, and brought KLR #3, which he had bought to replace #2 that he'd sent to Ecuador.
By the time Glen got back to California, he had fallen in love and transformed into "Mr. BMW". I was a single father at the time, and had sworn off bikes for the duration of my 18 year sentence. Glen told me that when I started riding again, if I bought a Harley instead of a Beemer he'd have to kick my ***. (I was a Harley rider before.)
He tried like hell to get a BMW sponsorship for the RTW ride, but the best that could be arranged was to let him buy a bike at dealer cost. He already had an 1150GS, which he had bought as soon as he got back to California from the SA trip, and he loved it - but it had had a factory recall for a bad driveshaft bearing or some such. He took an off-road riders course on the 1150 and if anyone could muscle that thing around in the dirt he could, but he decided on a 650 for the RTW. Not only lighter and better on fuel, but also chain drive and easier to fix on the side of the road (or to boost up into the back of a friendly local's truck - which does also happen).
After he got back from the RTW, he bought another 1150 and then when the new 1200s came out he bought one of those and said it was lighter and more powerful and he really loved it.
He started on the KLR because they had a good reputation and also because he had a limited budget and had to make his savings last 6 months on the road. By the time he got home he'd decided that it was false economy and he should have spent the money for a Beemer in the first place.
To be fair to the KLR, Glen is a lunatic. A real life Iron Man. He is one of those guys who simply will not stop. Take his bike, he'll walk. Break his legs, he'll crawl. Whatever it takes he WILL get to the finish. He's also got over a million miles on two wheels and has the skill and confidence - and what's even worse...the desire - to ride into conditions that would make most experienced riders cringe.
Which means that he also has a tendency to crash and eat **** more than most people.
I would say for most riders, the KLR is a nice bike and I wouldn't have a problem with owning one. For a maniac like Glen...it just doesn't have the balls to take the punishment when he's pushing the limits. And he's usually pushing the limits...