^^^ all those years ago, exploring all kinds of remote mountains tracks with the xt 350 & xt 500, there was 3 things I always took along: water, cofeine pills & tyre fix :O) In addition usually had a spare plug & socket + a solid Leatherman.
Mobile phone could be called a tool, but at that time zero connection in many places, so either one came back alive, or someone months later found a rusty bike carcass, and nearby, a helmeted skeleton, heavily chewed on by wolfes :O)
Picture from Pyrenees, heading into Spain from France.