Is it walkable if you get a flat? It would not be the end of the world if you had to walk home ~ 45minutes max, 30minutes jogging. If you are riding hadshells, I would estimate a flat every 2,000 miles. So, one flat per year. Can you deal with walking home once a year? If so you may not need anything. Definitely not a patch kit (it would take time to patch in the field that you could just be walking). All that being said I'd ride with 1 spare tube and a hand pump/C02.