What should I put in a bicycle emergency patch kit for situations more severe than a common puncture? [duplicate]

Question

If my bicycle breaks such as my spoke failure which lead to total tube rupture (but it could lots of possibilities) and I don't have any means to have whole bicycle carried, how can I achieve a temporary patch so I can move it a bicycle shop without further damage usually no more than 1 km? I am always riding in suburban areas. Such a kit should have components and directions and be small because there are rare occurrences such as string trapped into the chains (almost happened once to me), minor accidents (could be caused by sudden gusts or avoiding dumb people or children).

Answer 1

If you only ride in suburban areas, and assess that 1km is the maximum distance for reaching a "repair point", pushing the bike is more than adequate. Otherwise, as mentioned in the comments, other answers can give you hint on what to take along.

However, if you needed additional securities, the answer is not "a repair kit", but a "b-plan":

• Public transport/taxis: you indicate that you only use your bike in suburban areas, which may well served by public transport. In some regions, you can take bikes in busses, trams or metro/subways. If you can't take the bike there, you may also lock it somewhere, use public transport and come back later (with the necessary tools and spares to fix it).
• Insurance: roadside assistance can be offered as part of bike insurance packages. If you have no way to carry your bike and depends on it for your everyday activities, it's an option to consider too.

Answer 2

Puncture is the most common failure, second most common perhaps tire sidewall failure that can be fixed temporarily with tools used for fixing punctures plus a tyre boot.

Many bolts in bicycle are prone to loosening from vibration. You should be able to tighten nearly every bolt on your bike, with perhaps exception being crank bolts because once a crank bolt is loose, the press fit is already gone, and crank bolts anyway require so high force that carrying a wrench for it is not practical. Same for pedal attachment too: the tool to tighten is too heavy.

If you want the ability to remove drive side spokes on rear wheel, for example due to breaking, you need a mini cassette lockring tool such as the tool made by Stein. However, another solution could be to just zip tie the loose spoke-half and take care of it later.

Wheel truing may be necessary so you should carry a spoke nipple wrench of the proper size.

Chains do break occasionally. A chain tool is mandatory, plus either few quick links or reinforced connecting pins depending on which of these two are used by your chain.

Disc brake rotors and rims can become bent. A small 4 inch adjustable wrench can be used to straighten both, while at the same time allowing turning six sided bolts and nuts should you have any (and also the end of the reinforced chain connecting pins area easy to snap away with 4 inch adjustable wrench).

Don't carry just tools for repairing the bike. Carry tools to repair yourself. This means bandages, paper towels, antimicrobial wipes etc.

On long rides where it might rain occasionally, you could carry small plastic tubes of chain oil, allowing oiling the chain after the rain stops and the chain becomes dry and unlubricated, squeaking.

Answer 3

if my bicycle breaks such as my spoke failure which lead to total tube rupture

If you ride on a deflated tyre, you'll destroy the tyre, then the rim. But if you push the bike a km or two, it'll be fine.

Therefore, if you ride with clipless pedals and shoes that can't be walked with, your emergency kit should include a pair of walking shoes. If you ride with oldskool pedals, or you have clipless shoes that can be walked with (like MTB shoes) then your emergency kit is already on your feet.

This also covers most mechanical failures that can't be fixed in the field with a reasonable kit (multitool, chain tool, magic chain link, inner tube, pump, patches, tire levers, etc).

Worst case, a good lock to leave the bike on the spot and walking shoes that will get you home, or to the nearest transportation/bus/train/taxi if you're far out in the woods. And a payment card XD

There's another thing missing in the standard kit: a raincoat. You can get foldable ones that are barely bigger than a wallet and weigh next to nothing. There's one somewhere in my bike kit, and the few times I had to use it, I was really glad to find it. It is wide enough to cover a backpack.