To store your survival kit you can purchase a small saddle pouch that attaches under your seat. Make sure the pump head fits the valves on your tubes. To do this, inspect the tire, and run your fingers along the inside of the tire. Make sure the tube you carry in your kit is the correct size for your tires. Unless you have arms and hands of steel, you'll need these nifty gadgets to pry the tire from the rim.
Plastic levers are the lightest.
You should have two or three. E Allen Wrenches Also known as hexagonal wrenches. A 4 inch wrench will fit almost all the small nuts on your bike that may require mid-voyage adjustment. H Spoke Wrench Carry the size that fits your spoke nipples. This will come in handy more often than you might think.