Tires Tubes

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Posted by admin | Posted in Agriculture & Forestry | Posted on 18-12-2009

Tires Tubes

Installing New Bicycle Tires

To install your new tires begin by deflating your current tires and removing them. If required use plastic tire levers but NEVER a metal screw driver; doing so may scar your rims.

To remove the tire:
1. Deflate the tire.
2. Remove half of the tire from the rim, starting at the opposite side of the valve – pull the bead over the rim; using a set of tire levers will help. Now work your way around ending at the valve.
3. Push the valve up slightly to help unset the last of the bead.
4. Once half the tire is off, pull the tire back so the valve stem will clear it and push the valve all the way out (away from the hub).
5. While holding the tube at the base of the valve, remove it from the tire. Your tire will now be half on and half off your rim and tubeless.
6. Remove the other half of the tire from the rim the same way you removed the first.

Once you’ve removed the tire and tube from your rim, take the time to inspect the condition of your rim. Check to ensure the tape is properly covering the nipple holes and is centered between the side walls. For wheels without rim tape, such as the Fulcrum Racing 1 wheels run your finger along the surface to ensure it is still smooth. Pay particular attention to the weld.

Before mounting the new tire on the rim, it’s a good time to inspect the condition of your side walls, look to see how much metal is remaining and run a damp cloth between the side walls to clean them. This will remove any debris that may be hiding.

To mount a new tire:
1. Unfold the tire so it forms a round shape – use your thumb on the inside of the tire to encourage it to form its shape.
2. Line the tire label up with the stem hole on the drive side.
3. Lift the first tire bead over the rim working from the stem hole around. Hold the tire in place so it doesn’t slip. You may require a tire lever for the last bit.
4. With the first bead over the rim put a small amount of air in the inner tube you are going to use so it has a roundish shape – consider a new tube or inspect current tube.
5. Pull the tire back so you can place the valve in the valve hole.
6. Working from the valve out place tube so it rests in the tire.
7. Working from the valve out lift the other bead over the rim surface.
8. Inspect to ensure that with the tire mounted there is no tube visible between the tire bead and rim.
9. Inflate your tire to around 40psi and ensure tire is seated properly.
10. If everything is seated and the bead is grabbing the rim, inflate to your desired PSI.

Things to watch out for:
* Con caved side walls
* Old inner tube
* Bent or damaged spokes/nipples

Are tubeless bicycle tires less prone to flats than regular tubes-tires for a Mountain bike?

No, they aren't......except that the sidewalls are thicker and thus help to prevent pinching when bottoming out the tire against the rim at lower pressures/sharp impacts.

The main advantage of tubeless is avoidance of pinch flats (with tubes) and slightly less weight (usually). If you're like most people and you run a liquid sealant in your tubeless setup, then the weight savings is effectively nil. This depends on all of the components of the wheel, but it usually balances out equal-ish.

Around here, tubeless isn't as popular as it is in many places. We don't have many rocks or lots of gravity-fed riding, but we do have an awful lot of burs and thorns. Tubeless doesn't have as much advantage here as it does in other terrains.

Hope this helps some....