I used to ride a dirt bike, a lot! They are fun, but I would never consider them a front line BOV. Emergency and back up, sure. Get yourself an ATV of some kind (single seat or side by side) with a small bed and then look for a compatible trailer to pull behind it. That way you can haul your NEVER LEAVE BEHIND essentials in the rig and the "Extras" in the trailer.

YES I know your buds ride bikes, but are you looking for fun or true Bug Out?

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JYD#105