33
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es to the small chain wheel after activation with
short lever movement and to the large chain
wheel after activation with a long lever movement.
Combination of hub and chain gear:
This type of gear system is offered by SRAM
under the name ‘’Dual Drive’’. This type of gear
system has a 3 gear hub and additional sprock-
ets for conventional chain gear changes. One of
the advantages of this system is that there is no
need for a front derailleur and therefore also little
angled running of the chain.
The hub gear components are operated with a
thumb switcher and the chain gear system with a
grip shifter or a trigger shifter is the latest models.
The precise approach when setting up or re-
moving/fitting the rear wheel is explained in the
enclosed instructions from the manufacturer.
Automated gear selection
This is a continuous transmission system that al-
lows the driver to switch gears automatically or
manually.
Select the Automatic mode and simply set
your preferred pedaling frequency on the rotary
handle; the harmony system regulates everything
else. The drive automatically and continuously
adjusts the transmissions, so that your preferred
pedalling frequency is always maintained.
Select Manual mode and directly regulate the
continuous transmission on the rotary handle
when you want to choose your gear ra-
tio.
The desired gear-changing mode
can be selected with a button on the ro-
tary handle.
The display on the rotary handle show whether
the automatic or the manual mode has been se-
lected.
When the manual mode is active, you will see
an orange symbol depicting a cyclist on an in-
cline. The easier the gear selected, the further up
on the incline the driver will be shown.
Manual operation
When the automatic mode is active, the rotary
handle display will show the symbol of a crank
with pedals and a quarter-circle of blue, illuminat-
ed elements. The higher the pedalling frequency
you selected, the more illuminated elements will
be shown.
Automatic mode
Alternatively, the bicycle can also feature a
14-speed hub gear system made by Rohloff that
is operated with a rotary handle. The operating
instructions as well ase procedure for removing/
fitting the system in the case of a puncture are
Fast transmis-
sion ratio for
speed
Easy transmis-
sion ratio for
inclines
Faster pedal-
ling frequency
Slower pedalling frequency
Lever b
Front
Lever a
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The gear lever behind the left brake lever switch
Ratchet
Turn ratchet
