X2 on plugs and some method of getting air in a tire. I use an old foot pump but I prefer low tech. I've seen the portable electric pumps fail. Other items are general tools, overnight gear incase you get stuck out there, extra batteries for anything you carry that takes them, extra gas and other fluids, and so on. There's thread here on the topic.
I have 2 pods on my 2017 Grizz front rack, i don't have the storage box up front any more cause there's snorkel pipework going though there now' I/we only go out for the day, but it is a long way out to nowhere and you have to get yourself out of trouble if you have to' plus we try not to go alone.
1st aid kit for (stings bites burns bruises cuts the usual band aids creams ect)
small socket set
tire repair kit + tire sealant+ a cigarette lighter in case ya break the bead
ATV snatch block + small chain n shackles
screwdrivers (only what you need)
A good set of pliers short and long nose
Bout a dozen zippy ties
Good old Gaffa tape
1 Small ratchet strap
and in the boot i got...
Jumper leads and a good
Tow rope when all else fails
And if you got any room left over fill it up with plenty of clean rags, overkill nah i don't think so there is not one item on the list that i haven't used to help somebody ;-)
I'd rather have with than without, so comprehensive Cruz tool roll (and other tools) as well as Cycle Pump plus CO2 cylinders, plug kit and tow strap just to name a few. I don't/won't ride at night, so lighting is of low priority. I did buy and install Yamaha OEM front/rear cargo boxes, in which Rotopax 1-gal pack will be carried inside front box on Rotopax mount attached to leftover strip of rubber stall mat. I have more than sufficient storage capacity for how I'll use mine...