Yes I can comment more on the weight issue.

The dry weight of the outgoing standard R1200GS is 203 kgs.

The dry weight of the F800 Adventure is the same. Its supposed to be a lighter bike - a middle weight bike. It isnt. If 200 kgs is a big adventure bike then middle weight bikes should be 165-180 kgs dry. I cant see how anyone can consider a 229 kg wet weight bike (without luggage) anything but a big / heavy bike.

The problem is when you look closely at an F800, you struggle to find any evidence on the bike have BMW designers been weight conscious. If BMW had put a little effort into weight reduction the bike could easily be 25 -30 kgs lighter

Your Tenere 660 is also about 185 kg dry weight. As far as I am aware, its the heaviest single cylinder bike in the world. Possibly the heaviest single cylinder bike ever built. Again, Yamaha has made zero effort to reduce weight. That bike could be 40 kgs lighter.

Manufacturers make a lot of effort to reduce weight on track replica bikes, on MX bikes and on proper enduro bikes. But they dont make any effort on adventure bikes. And if the adventure bike buying public dont demand lighter adventure bikes, the manufacturers never will bother making any effort to reduce the weight of them.

In response to your debating of F800 vs X-challenge (144 kgs dry), I recommend you read these thoughts from a man who not only owns both, but has done proper off road adventuring on both the F800GS and the XC (each bike for at least 3 months across Siberia and Latin America) - With that experience of both bikes I know of no-one more qualified to give a balanced, objective comparison on real world adventuring on those two bikes:

ADVrider - View Single Post - Sibirsky Extreme 2012

The same guy, in another post in an answer to a question about comparing the two as adventure bikes, wrote this:

Bear in mind he was referring to the F800GS ... the new F800Adventure is 15-20 kgs heavier again!

A further interesting observation related to weight from one of us HUBBers riding around the world on a KTM 690 (138 kgs dry) at the moment. He was last month in the stunning scenery of Tajikistan ...

ADVrider - View Single Post - RTW with Noah on a KTM 690

Why have a big bike if it will limit your trip?

To me this is one of the ultimate questions that I see people who are new to Adventure Motorcycling failing to ask themselves. Certainly there are some very skilled riders for whom a big bike will not limit their choice of routes. But they are a tiny minority in the world of adventure riders. For the rest (98%) of us mortals, we need to seriously consider weight.

You should not be limiting your adventure because of your choice of a heavy bike. If a person limits their adventure because of the weight of their bike, then the adventure itself was not their priority. Maybe image is? Maybe something else? (not that there is anything wrong with that)

My experience when it comes to bike selection, gear selection, tyre selection etc .... is you should plan for the toughest parts of your trip. If a guy is riding from London to Cameroon, across the Sahara, the experienced man will not select his bike, his tyres, his luggage as to what will work best on the motorways of Europe. If the hardest part of that planned trip is the dunes of the Sahara, then he needs his choices to first and foremost, be compatible with that. Any adventure bike for a given trip is a compromise. But the selection criteria you should compromise the least, are those required for the hardest parts of the trip. A wise choice is not an even compromise between all aspects of your trip, its a compromise heavily biased towards the hardest parts of your trip.

You should plan (and select gear) for the toughest parts of the adventure you want to have. Any bike, any luggage, any tyres can deal with the easy stuff ...

Here are more observations related to bike weight from another HUBB writer a few weeks ago in Mongolia:

Whats clear from those observations is that the amount of fun was totally connected to the weight of the bikes.

Here's another story from last year and Mongolia - written from the perspective of a different guy on a KTM 690 (138 kg dry):

ADVrider - View Single Post - Sibirsky Extreme 2012

[edit] A new comment just in from UB, from another adventurer, whose 1200 GSA was too heavy for the job and ultimately arrived into the Mongolian capital on the back of a truck.

http://www.horizonsunlimited.com/hub...mongolia-71550

The reality is, as soon as you get off the asphalt, weight is a very very important issue. Lose 40 kgs and its a totally different experience, as the guy comparing his experiences between the F800 and the XC pointed out. The difference between suffering / enduring somewhere like Mongolia and enjoying it, is 40-50 kgs in bike weight.

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