56
Bicycle gears
11 gear hub:
• Put the gear lever to position 6.
Otherwise the hub gears are set up in exactly
the same way as the 7/8 gear version.
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 sys-
tem with a grip shifter or a trigger shifter in 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.
6
Source: Shimano
®
techdocs
Alternatively, the bike can also feature a 14
gear hub gear system from
Rohloff
or
NuVinci
continuously variable gears, which are also
operated with a grip shift. The respective op-
erating instructions as well as procedure for
removing/fitting the system in the case of a
puncture are provided in the enclosed operat-
ing instructions. It is certainly also helpful if
your specialist retailer explains the function-
ality to you and demonstrates removing/fitting
the system.
How to check for wear on your bike chain:
• Hold some of the segments of the bike
chain on the front gear ring with the thumb
and forefinger.
• Attempt to lift the chain from the chain
ring. If there is a substantial gap between
the chain and ring, the chain is worn and
has to be replaced with a new one as soon
as possible.
22.1 Bicycle chain maintenance
On a general level, you should know that there
are two different basic types of bicycle chain:
• Narrow chains which are used for chain
gear systems. The width of the chain varies
depending on the number of sprockets. You
should therefore only use chains which are
intended for your number of gears.
• Broad bicycle chains, (½ x 1/8”) which are
used for hub gear systems.
22. Bicycle chain
Regularly care for your bi-
cycle chain by cleaning and
greasing it.
Attempt to ride in the gears with the
least angled running.
Both of these measures help prevent
premature wear.
Set to
Cable adjustment screw
Grip shift
Thumb shifter
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