If your with a group, not much. A good compressor like a Viair makes life easier but since you are on smaller tires a cheaper one would probably do. We air down our tires and when done air back up. Some basic tools, tire repair kit, I have a high lift with an adapter so you can lift from sliders or tube bumpers. It all depends on the trail. A portable compressor is a must, tow straps are good but do you no good if alone, a shovel might be good. Water and spare oil are good to have also.