A key point to ponder on when choosing a good replacement tire is the right size. Of course, you need to pick one with the right dimensions. Otherwise, it will not be installed properly and even if it has been installed, it will not work quite as efficiently as before.
You can actually see the measurement of your old tire as it is usually inscribed on its sidewalls. But if not, you can measure using a tape measure. Here is how you can do it:
Step 1: Inflate the tire first. It is much easier to measure the dimensions of the old tire if it has been inflated. Use an air pressure gauge and inflate it to the right pressure. Do not over inflate or under inflate the tire as this can give you inaccurate measurements.
Step 2: Let someone hold the bike in a straight position. If no one is around to assist you, you can prop the bike on a wall just as long as it is in an upright position.
Step 3: Now you can measure using a trusty tape measure. Put the tip of the tape measure at the center of the bottom part of the tire. Work the tape measure up to the upper part of the tire. You are now measuring a vertical line. This is the tire size diameter.
Step 4: To measure the width, just put the tip of the tape to one side of the tire and work your way to the other side. This will be the thickness of or the width and this is usually the second number in the tire size description.
Usually, these details are included in the manual of the bicycle. You may need to look for the manual if you have tucked it somewhere. If there are no manuals, you can look for any paperwork that came with the bicycle as this has the details of the right size of bike tires you will use.
You can also check the size of the rim as this will determine that right size of tire that will go with it. If you already have a flat tire and you cannot do the steps mentioned earlier, you can always measure the rim. Also, this would be MOTORCYCLE KEY CUTTING better so you will not have to see to the right pressure of tire.
Your last resort is to go to an expert, to a bike store for instance and have them look at your bike and measure the right size.
In the post apocalypse world staying mobile means staying alive. The question is, how should this be done. If you like movies such as the Road Warrior or Doomsday that answer is to use a car to get around the wasteland. This is not always practical, if you decide to use some type of vehicle for transportation here is a little checklist of things to consider before blindly going off and grabbing that Porsche you always wanted to drive.
Can You Fix It?
Automobiles are complex machines with multiple moving parts, and computer and electronic equipment. Even older vehicles still have numerous parts that require precise timing to function properly. Now factor in a post apocalypse environment where all the body shops are abandoned and access to a mechanic will be extremely limited, factor in as well that most people don't change their own tires or other basic mechanical requirements and you have a situation where cars will break down and be left to rot because no-one can repair them.
Fuel
There may be refiners here and there that are still working but for the most part fuel will become scarce quickly. While you can find fuel in abandoned cars and gas stations, these are sources that will dry up fast.
Replacement Parts
You might be able to fix your vehicle but only if you have the parts to do it. After scraping other vehicles for parts and tires, you will need to be able to fabricated new ones. Otherwise simply swapping out parts from one car to another will only be a temporary solution.
H.E.M.P
This is short for high altitude electro-magnetic pulse which occurs when a nuclear weapon is detonated at high altitude. It's purpose is to essentially fry all electronic devices with a blast radius to effectively wipe out communications and hinder an enemy's movement on the ground or air. This means that everything in that area that electric is now dead. Computers will be fried, clocks will stop, pacemakers and those on life-support at hospitals will die, and every car, motorcycle, moped, and ride on lawnmower won't work, unless you spend considerable time replacing key electrical components. Older cars will have a major advantage in that with the right parts they can be up and running again. Newer cars especially in the last decade relay heavily on micro-chips and processors to help with everything from fuel economy, to navigation, to running all the luxuries we take for granted. Newer cars will require a complex overhaul of these systems to become operational again, something many of use simply don't possess the knowledge to do.
The Road
Roads in many areas will be unusable after a collapse. First abandoned cars will litter the highways and major routes leading in and out of cities, this in turn will make travelling around cities much slower and potentially hazardous as the few roads that are still usable could be blocked off by other survivors looking to ambush you. Mother Nature herself will cause havoc in many areas by causing landslides, flash floods, and other weather effects that will wear roads down and make them impossible to pass.
Lack Of Cars
If the collapse comes from either an environmental disaster such as what's predicted to happen in 2012, or a nuclear war that destroys most cities and urban areas, there will be far fewer vehicles to choose from. This will also mean that what I mentioned before in terms of fuel, replacement parts, and skilled mechanical persons will be in even shorter supply making the few vehicles that are left wear out that much faster.
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