121
Rim trueness and spoke tension
For the true running of the wheel it is imperative that the tension exerted
by the spokes is distributed evenly around the rim. The tension of individ-
ual spokes can change when you ride e.g. too fast over a kerb or a nipple
comes loose. This brings tensile forces out of balance. The functioning of
your CS may be affected even before you notice this irregularity due to
wobbling.
Therefore, check the wheels for trueness from time to time: Lift up the
wheel and make it rotate with your hand (Fig. 133). Observe the gap be-
tween the tyre and the fork or the frame. If the gap varies by more than a
millimetre, you should ask your Ca Go dealer to true up the wheel.
Fig. 133
Notice
Loose spokes must be tensioned at once. Otherwise the load on the other
spokes and the rim will increase.
Notice
Truing (retruing) wheels is a difficult job which you should definitely leave to
your Ca Go dealer.