I bet you saw 127 Hours and realize how valuable a good quality multitool can be. You probably already own one.
But when moto-camping it's a good idea to have another multitool for the moto. Like this Outback'R OM14 from CruzTOOLS.
These compact tool sets are real life savers and take up very little space. But they're not just handy for working on your bike! I've found them invaluable for fixing all sorts of stuff at the campsite.
Metric and English size versions are available.