Originally Posted by
Sangetsu
...about 2700km......
I'll be carrying two spare tires, 4 tubes, a patch kit, a few extra chain links, two extra cable housings (precut), cables, and the necessary tools. I used to be a bike mechanic, and can do my own repairs. Most of the components on the bike are new, or near new, I will replace the brake pads and cables before setting out. Bike shops are common enough in Japan, and I can buy spares along the way if necessary....
start with fresh tires, carry only one spare.
(some might argue no spare tire needed..)
2 tubes and a patch kit.
cable housings? can't imagine the need, unless
folding bikes special consideration...
i'd use a small handlebar bag instead of a backpack,
not so comfy while riding, YKMMV.