It's hard to tell, but my vice grips are actually a multi tool.
Tools to remove the clutch and belt are useless without the knowledge of how to use them. Once I aquire that knowledge, i may add them to the tool kit, especially if I ever got for an extended tour.
As for propellent with glue, you are probably refering to fix-a-flat. That stuff leaves a mess. The shop that changes your tire will probably charge extra to clean it up. I prefer to actually plug the hole using a sticky string. I have repaired several car tires using the sticky strings and never had a repair fail. On scooter and motorcycle tires, repairs are supposed to be temporary - just to get you home. I once had tire on a full dress touring bike rerpaired using a sticky string. It went another 14,000 miles with that repair until the tire wore out and I replaced it. Using slime is another option. It's not as messy but you need to have a valve core tool (there is one in my tool kit) and a means to inflate the tire. Some people just run the slime in their tires as a way to prevent a flat. The problem with this is that you may never notice a nail in your tire unless you inspect it carefully. I prefer not to do this but it is an option.