I have a 2015 R1200 GS Adventure and it has fuses. See page 132 of the handbook (for 2015 models, that is). Your owners handbook will tell you if you have fuses or not and where they are located. I rode my GS from North Carolina to Texas and back and did not need any spares. I have ridden all over France, Germany, Belgium and Austria and did not need spares. I did need to replace a tyre on my Texas trip and that was done by BMW Motorcycles of Baton Rouge. They also had the parts for the warranty recall that I was waiting for (for several months) and they completed that work at the same time. They were very accommodating. I always carry a small toolkit in addition to the screwdriver that lives under the rear seat so that if anything were ever to come loose, I have the tools needed to rectify that, but I do not carry a complete toolkit to tackle every job. So far, I have only needed the tools once when the gear shift pedal came loose and I was able to nip up the bolt. It is a good plan to have, and not need, rather than need and not have. Tools do take up space and weight but you can put together a basic kit that is in a small package (for peace of mind more than anything else) but unless you are are traveling around the world or are in some remote area you really do not need a “spares” kit with air filters and plugs and so on, but do consider taking a puncture repair kit and a few small tools (which might come in handy). As mentioned by others: water is about the best spare you will need. I also take paper maps (in case the GPS dies) and a list of dealers in case I do have a mishap. Also, have some sort of towing coverage for the worst case scenario and at least you can get somewhere to have repairs completed if needed. Regular servicing is worth doing and consider the tyre life or you will need to replace them while you are on your trip (which is what I had to do, but it was a planned event). Before undertaking a long trip, make sure your service history is up to date so the fluid levels are all correct and you have plenty of brake pad life, etc., and consider making a shorter “shake down” ride before the “big trip” just to make sure nothing is loose before you set off.