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Operating instructions SPIKE adaptive bike
Figure 15: Correct grip hold
17.4 Gear shift
17.4.1 Hub gears
The hub drive can be changed while driving
and also when stationary. No crank movement
is needed to change or only a small reduction
in torque is needed while driving.
The Shimano Nexus hub drives are operated
by turning the grip shift. The gear selected is
shown in the display on the control panel.
Gear display
Figure 16: Shifting using the grip shift for the
Shimano Nexus Inter8 hub drive
Gear changes
by twisting
the grip to the
left and right
With the Shimano Nexus Inter8 hub drives
there is another operation option via the
operating machine that enables shifting using
the chin (option). To change up move the gear
lever 45° up and to change down move it 45°
down. After completing the gear change, the
gear lever moves back to its starting position.
There is no display for the gear selected
available.
Gear lever
Figure 17: Shifting via the PRO ACTIV operating
machine with the Shimano Nexus Inter8 hub drive
For more information on hub drives, please
see the instructions provided by the gear
manufacturer.
17.4.2 Pedal bearing gearshift
The pedal bearing gearshift ("Mountaindrive"
gear reduction for hills) is switched on by
pressing the control buttons on the left and
right of the pedal bearing. Here, you can
choose between a 1:1 gear ratio (the left
control button in the direction of travel) or a
2.5:1 gear ratio (the right control button in the
direction of travel).
Left control
button
Press
Left-hand:
1:1 gear ratio
Figure 18: Left control button of the pedal bearing
gearshift
Change up
Change down
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