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after an accident
1. Check whether the wheels are still firmly fixed in the drop-outs and
a
2. Check that handlebars and stem are neither bent nor broken and
b
3. Check whether the chain still runs on the chainrings and the
c
d
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whether the rims are still centred with respect to the frame or fork
(a). Spin the wheels and observe the gap either between brake
pads and rim sides or between frame and tyre. If the width of the
gap changes markedly and you have no way to true the rim where
you are, you will need to open the rim brake a little so that the rim
can run between the brake pads without touching them. Please
note that in this case the brakes may not act as powerfully as you
are used to.
You can find further information in the chapters "brake System",
"how to use Quick-releases" and "wheels and tyre equip-
ment" and in the instructions from the parts manufacturers, which
you can find on the enclosed CD.
that they are level and upright (b). Make sure the stem is firmly
fixed on the fork by trying to turn the handlebars relative to the front
wheel. Briefly lean on the brake levers to make sure the handlebars
are firmly fixed in the stem (c). Realign the components, if neces-
sary, and carefully tighten the bolts to ensure reliable clamping of
the components. The maximum torque values are printed directly
on the components or specified in the enclosed operating instruc-
tions.
You can find further information in the chapters "adjusting the
wheeler bicycle to the rider" and "headset" and in the in-
structions from the parts manufacturers, which you can find on the
enclosed CD.
sprockets. If your WHEELER bicycle fell over to the chain side,
verify the proper functioning of the gears. Ask somebody to lift the
WHEELER bicycle by the saddle and carefully shift through all the
gears. Pay particular attention when shifting to the small gears and
make sure the rear derailleur does not get too close to the spokes
as the chain climbs onto the larger sprockets (d).
If the rear derailleur or the drop-outs/derailleur hanger are bent,
the rear derailleur may collide with the spokes. This can result in
damage to the rear derailleur, the rear wheel and the frame. Check
the function of the front derailleur, as a displaced front derailleur
can throw off the chain, thus interrupting the drive train of your
WHEELER bicycle.
You can find further information in the chapter "gears" and in the
instructions from the parts manufacturers, which you can find on
the enclosed CD.
4. Make sure the saddle is not out of alignment, using the top tube
or the bottom bracket shell as a reference. If necessary, open the
clamp, realign the saddle and retighten the clamp (f).
You can find further information in the chapters "adjusting the
wheeler bicycle to the rider" and "headset" and in the in-
structions from the parts manufacturers, which you can find on the
enclosed CD.
5. Lift your WHEELER bicycle up a few centimetres and let it bounce
onto the ground (g). If this causes any sort of noise, search for
loosened bolts or components. Retighten them, if necessary.
6. Finally, take a good look at the whole WHEELER bicycle to detect
any deformations, colour changes or cracks (h).
e
(e)
f
f
g
h
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