Carefully check the outside and inside of the tire for the cause of the

 

puncture and remove the cause if it is still there. If the tire is cut, line

 

the inside of the tire in the area of the cut with something handy – tape,

 

a spare patch, a piece of inner tube, a dollar bill – whatever will keep

 

the cut from pinching the inner tube.

 

Either patch the tube (follow the instructions in your patch kit), or use a

!

new one.

WARNING: Patching a tube is an emergency repair. Careless patching

or applying several patches can seriously weaken the tube, resulting

in possible tube failure, which could cause you to loose control and

fall. Replace a patched tube as soon as possible.

 

Reinstall the tire and tube. Slip one tire bead over the rim. Insert the

 

tube valve through its hole in the rim, but don’t secure it with the lock-

 

nut yet. Feed the tube carefully into the cavity of the tire. Inflate the

 

tube just enough to give it some shape. Starting at the valve stem and

 

working around both sides of the rim to the side opposite the valve stem,

 

use your thumbs to push and seat the other bead of the tire inside the

 

rim. Be careful not to pinch the tube between the tire bead and the

 

wheel rim. If you have trouble getting the last few inches of bead over

 

the edge of the rim with thumb pressure, use a tire lever and be careful

74

not to pinch the tube.

 

Page 78
Image 78
Cannondale Bicycles manual Cut from pinching the inner tube