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NJ1 el. & FREAK el. compact bike usage instructions
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4. Check by measuring the distance between
the running wheels at the front and back
again at the axle height (along the mark-
ers) so that the distance between the run-
ning wheels at the front than at the back is
no more than 5 mm.
Figure 54: Distance between the markers on the
tyres (at axle height), back
5. Once all of the distances are correct, use
an open-ended spanner (AF 24 mm) to
hold the drive wheel bushing in position
and tighten the aluminium locking nuts (AF
41 mm) to a tightening torque of 70
Nm.
22.3 Tyre pressure
Check the tyre inflation pressure at regular
intervals as well as after extreme temperature
effects. The
recommended tyre pressure is
printed on the side of the tyre
. This should
be observed.
Insufficient tyre pressure has a negative
effect on the handling. Apart from that, there is
an increased risk of a flat tyre.
If the pressure is too high, the tyre may
burst. For this reason, product tyres may not
be exposed to unusually high temperatures
such as under glass in the summer.
When inflating the tyres, make sure that
the prescribed air pressure is not exceeded.
To check or correct the tyre pressure
, pro-
ceed as follows:
1. Secure the product to prevent it rolling
away.
2. The drive wheel is normally fitted with a car
tyre valve. Unscrew the valve cap.
Figure 55: Valve with cap
3. Place the valve attachment of the com-
pressed air device or the compressor onto
the valve and, if a clamp lever is available,
secure the connection by applying the
clamp lever.
4. Now check the tyre pressure. If the tyre
pressure does not match the specifica-
tions, correct it.
5. Finally release the clamp lever (if present),
pull the valve attachment off the valve and
replace the valve cap.
Figure 56: Compressor
Distance
Markings
Valve with cap