How to Fix Flat Tires on Bikes (with Pictures)

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How to Fix Flat Tires on Bikes (with Pictures)
How to Fix Flat Tires on Bikes (with Pictures)

Video: How to Fix Flat Tires on Bikes (with Pictures)

Video: How to Fix Flat Tires on Bikes (with Pictures)
Video: How to Fix a Flat Tire on a Bicycle 2023, September
Anonim

Nothing can ruin a bike ride more than a flat tire, but fixing a puncture is a piece of cake, all it takes is a little effort and a few simple tools and products.

Steps

Mend a Puncture in a Bike Tire Step 1
Mend a Puncture in a Bike Tire Step 1

Step 1. Find out where it is and how big the hole is

If the tire blew, or has a large puncture, it will need to be replaced. If you ran it over several spikes, there could be dozens of holes, but if it's a single hole, for example, made by a nail, it's usually possible to fix it.

Mend a Puncture in a Bike Tire Step 2
Mend a Puncture in a Bike Tire Step 2

Step 2. Turn the bike over so that it rests on the saddle and handlebars

Do not lean on the brakes or shifter. It may be necessary to use a block of wood so that the bicycle does not rest on these parts.

Mend a Puncture in a Bike Tire Step 3
Mend a Puncture in a Bike Tire Step 3

Step 3. Rotate the tire slowly

Look for anything stuck in the tire, such as a nail, a piece of wire, a screw, or any other object.

Mend a Puncture in a Bike Tire Step 4
Mend a Puncture in a Bike Tire Step 4

Step 4. Allow the remaining air to exit the chamber

It may be nice to have a valve wrench, but a matchstick or pen can be used to press down on the schrader valve stem. The valve stem is a small round piece of metal under the plastic cap, through which air is drawn into the tire.

Mend a Puncture in a Bike Tire Step 5
Mend a Puncture in a Bike Tire Step 5

Step 5. Remove the tire from the rim using a lever

Use tire spatulas to get the tire off the rim. Insert one between the rim and the tire, push the lever down to lift the tire off the rim, insert the second spatula, and pass it around the rim to revoke the tire. If you don't have tire spatulas, you can use a screwdriver as follows: place a flat-blade screwdriver between the tire and the rim, and pry the tire rim out of the rim. You will need to loosen the tire all around the rim, leaving a distance of 2.5 cm to 5 cm, until the tire is loose enough to be pulled out on one side.

Mend a Puncture in a Bike Tire Step 6
Mend a Puncture in a Bike Tire Step 6

Step 6. Remove the tube from the tire

Be careful not to tear off the valve stem. The chamber will be dangling between the rim and frame, so if it's the rear pendulum, don't let it get tangled up in the gears or the chain.

Mend a Puncture in a Bike Tire Step 7
Mend a Puncture in a Bike Tire Step 7

Step 7. Fill the chamber enough to discover the leak

The chamber is double or triple its original size, and the more air, the more the hole will expand, making it easier to find.

Mend a Puncture in a Bike Tire Step 8
Mend a Puncture in a Bike Tire Step 8

Step 8. Look for a small hole around the chamber

Feel and hear the air escaping. An even easier way is to place part of the chamber underwater, in a bucket, for example, and see the bubbles coming out of the hole.

Mend a Puncture in a Bike Tire Step 9
Mend a Puncture in a Bike Tire Step 9

Step 9. Mark the hole location when you find it

Use a ballpoint pen or chalk to draw a large "+" over the hole. If you don't, you may have difficulty applying the patch. Take the air out of the chamber once more.

Mend a Puncture in a Bike Tire Step 10
Mend a Puncture in a Bike Tire Step 10

Step 10. Polish the area where you will place the patch

Most patch kits come with a small metal file, or a small square of sandpaper for this purpose.

Mend a Puncture in a Bike Tire Step 11
Mend a Puncture in a Bike Tire Step 11

Step 11. Spread a thin layer of glue around the hole

Allow to dry until the shine of the liquid disappears. Let all the air out of the chamber.

Mend a Puncture in a Bike Tire Step 12
Mend a Puncture in a Bike Tire Step 12

Step 12. Remove the back plastic from the patch

Be careful not to touch the adhesive part, and place this part on the camera, pressing firmly. You will need to use one hand to hold the back of the chamber, to press hard enough to close the hole.

Mend a Puncture in a Bike Tire Step 13
Mend a Puncture in a Bike Tire Step 13

Step 13. Slide the tube back into the tire

The valve must line up with the hole in the rim where it must enter.

Mend a Puncture in a Bike Tire Step 14
Mend a Puncture in a Bike Tire Step 14

Step 14. Push the tire back in with your palms. Important: Avoid using spatulas if possible, and never use a screwdriver to perform this step. The idea is to fit the tire into the rim, without "pinching" the tube, which could cause another puncture.

Mend a Puncture in a Bike Tire Step 15
Mend a Puncture in a Bike Tire Step 15

Step 15. Put the wheel back on the bike

Reconnect the brake if you released it to take the wheel off. If it was the rear wheel, put the chain around the sprocket. Check that the rim is exactly between the brakes. Then securely tighten the nuts or lock.

Mend a Puncture in a Bike Tire Step 16
Mend a Puncture in a Bike Tire Step 16

Step 16. Inflate the tire

Read the pressure printed on the side of the tire and use a pressure gauge to avoid overinflating the tire. Put away the tools and finish your tour.

Mend a Puncture in a Bike Tire Step 17
Mend a Puncture in a Bike Tire Step 17

Step 17. follow these steps----

Tips

  • There are amazing products on the market to seal and inflate tires without disassembling the tire or wheel. Note, however, that when using them, you must still have a pump to inflate the tire. "Fix-a-flat" is an aerosol can with latex rubber and a compressed propellant that instantly inflates the tires, but it's a mixture of high pressure and flammable, so it's more suitable for larger tyres. Chemical-based tire repair products also make wheels heavier.
  • Know the components of your bike. Removing from the wheel can be difficult with different types of gears, chains, brakes and other components. It's good to practice removing and changing tires at home, before your tire actually blows. There are some images on the external links.
  • If you don't have patches, or patch glue, regular super glue can be used even without patch. If using super glue, it is best to let it dry overnight.

Notices

  • The screwdriver is a good tool if there is no other option, but it can puncture the chamber, scratch the rim, (creating burrs that can puncture the chamber again) and cause general damage. If so, use tire spatulas. They can also damage the camera, but it's far less likely.
  • Never attempt to patch in areas with a lot of traffic or in other dangerous situations, such as in the middle of a bike path. Push your bike to a safe place before making any repairs. You'll be too focused on the repair to pay attention to oncoming cars, cyclists and skaters.
  • Over-inflating or under-inflating the tire can create a dangerous situation and more likely to flatten again. Always follow the manufacturer's recommendations when inflating a bicycle tire. This information is on the side of the tire, above the rim.

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