Operating instructions NJ1 & FREAK Compact bike
13
The cables for the Rohloff hub drive are an
exception for this. If the handles are held
correctly they point forwards into the direction
of travel.
Figure 10: Correct hold of the handle for the Rohloff
hub drive
16.3 Gear shift
16.3.1 Chain
shift
For the chain shift, shifting procedures can
only occur while the crank is moving. Changing
the gear with the cranks stationary is not
possible. In general, the torque applied to the
cranks should be reduced briefly while
changing the gear so that the gear change can
happen more quickly.
The controls for the gear change are normally
designed so that they can be operated using
thumb / index finger switching fittings
. With
the 9-speed cassette at the bottom, switching
to the next largest sprocket means a lower or
easier gear, and to the next smallest sprocket
to a larger or more difficult gear. For the 3-
speed chain wheels at the top, the behaviour is
exactly the opposite.
Figure 11: 9-speed cassette and 3-speed chain
wheels
With the thumb / index finger switching fittings,
gear changes are achieved by:
"Thumb switch" – operation by pressing in
the direction of travel with the thumb
"Index finger switch" – operation normally
by pulling in the opposite direction to travel
with the index finger (alternatively can also
be operated with the thumb by pressing
against the direction of travel).
There is no display for the gear selected
available. There is only an orientation as to
which chain wheels / sprocket is currently
being used via a display above the handle.
Figure 12: Operation of the thumb / index finger
switching fittings
3-speed chain wheels
Thumb
operation
Index finger
operation
9-speed
cassette
Display of the
chain
wheels /
sprocket
