Operation Manual

GHOST-BIKES

103

15.5.1 Changing the inner tube and tyre

WARNING Danger from falls and accidents

Errors during the repair of the wheels can lead to dangerous riding behaviour.

You should carry out these repairs yourself only if you have the necessary tools and

manual skills.

In order to repair a ﬂ at tyre you need the following equipment/tools:

• 2 tyre irons

• suitable inner tube (new) for your tyre size. Your tyre size and your type of valve can be found in section

4.7, Tyres.

• new tyres (new) tyres in your size, if necessary. Your tyre size can be found in section 4.7, Tyres.

• air pump with pump head suitable for the valve

1. Remove the wheel. See section 13.1.1, Dismantling the front wheel and 13.1.3, Dismantling the rear

wheel.

2. Unscrew the valve nut as far as it will go.

3. Press the valve with your ﬁ nger until all of the residual air has escaped.

4. Remove the nut from the valve base.

5. Lift the tyre off the rim using the tyre irons. Begin on the side opposite the valve.

6. Pull the inner tube out of the tyre. Note the direction of the inner tube in the tyre.

7. Look for the cause of the ﬂ at tyre:

• Pump up the damaged inner tube.

• Search for the point where the air is escaping.

• When you have found the leak: turn the inner tube in on itself so that the valve is pointing inwards.

8. If the leak is on the inside:

• Check that the rim tape is positioned correctly: All spoke holes must be covered. If this is not the

case, please contact your specialist bicycle dealer.

• Check the rim for damage (sharp edges, chippings etc). If you ﬁ nd such damage, please contact

your specialist bicycle dealer.

• Check whether there are one or two small holes next to each other.

NOTE:

Two small holes indicate a puncture (snakebite). This is a frequent cause when riding over sharp-

edged obstacles with too little air pressure.

If the rim is not damaged: install a new inner tube.