On the bike:
- A pump (full size, works great on dogs as well as tires )
- Spare spoke (one size fits both the front and rear wheel, both sides (a little "Macgyverism" of mine )!
In a small wedge shaped pack nestled in the rear triangle:
- Spare tube
- Patch kit
- Wide jaw 6" crescent wrench
- "Swiss Biker's Knife" which has an Allen set (2-6mm) Phillips and slotted screwdriver
- Tiny chain tool (about 1/3 the size of a disposable lighter) works with an Allen key and the crescent wrench.
- Spare chain link and a few "quick release" links.
The latter two fit inside the patch kit box, and with these tools I can repair 85%-90% of the bike. For longer tours (over a week), I also carry;
- Spanners for headset and BB.
- Cone wrenches.
- Misc spare parts (folding tire, bearing cones, balls, more than just one spare chain link, cables.)
- Small containers of lubricants (White Lightning and waterproof grease)
With these additions I can repair the entire bicycle.
This is why I stubbornly hang on to older technology; it is user serviceable. I even use the old style UniGlide cog sets, These let me remove the cogs without any tools to get at a broken spoke on the chain side. Also, if a cog wears I can also reverse it and get a few thousand more miles of use out of it. I dare any of you to try either of those with the newer one piece cog sets with their "handicap ramps".
IMO, the newer "no need for maintainance" s**t has only one purpose: Not to make thing easier for us, but to make more money for the manufacturers. With simple maintainance the old stuff will last longer (because it is getting maintainance. The new stuff forces you to use it until it wears out. Then pray the more expen$ive replacement will still be compatable with the thirteen other things it is supposed to work with. Otherwise you will have to replace them a$$$$ well.
~End of rant~