Operating instructions NJ1 & FREAK Compact bike
24
20.3 Adjusting the length of the
collision guard
When mounting running wheels with another
tyre size, the length of the collision guard may
have to be adapted. For this purpose, undo
both M6 fixing screws (AF 4 mm) on the right
and left inlet. Now the collision guard can be
pushed along the inlet and another borehole
can be used for the fixing screws.
Figure 46: Inlet with several boreholes
Once the correct position of the inlet has been
found, both M6 fixing screws (AF 4 mm) are
tightened to 7 Nm again and secured using
screw locking fluid.
21 Running wheels
21.1 Removing and attaching the
running wheels
Figure 47: Locking knob in the middle of the wheel
axle
To
remove the running wheels
grip through
the spokes around the wheel hub with your
fingers. By pressing the locking knob in the
middle of the wheel axle with your thumb, the
wheels can then easily be removed.
When
attaching the running wheels
the
locking knob also has to be pressed. Special
attention should be paid here to ensure that
the knob springs out again after attaching the
wheel as otherwise it is not secured. You will
know that if you can see the index groove.
Figure 48: Quick release axle with index groove
Before using the product, check if the
running wheels are secured and that the quick
release axles are locked.
21.2 Checking and setting the wheel
tracking
Well adjusted wheel tracking significantly
improves the easy running characteristics of
the product. To
check
the tracking, proceed as
follows:
Position the product on a flat surface and apply
the parking brake.
Measure the axle heights (from the ground to
the drive running wheel axle) and write this
dimension onto both tyres at front and back (on
the tread of the tyre).
Locking knob
Inlet with
borehole
Index groove
