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Brakes are vital to your safety. You
should therefore maintain them on a
regular basis. This requires special-
ist knowledge and tools. Allow your specialist
retailer to do this type of work on your bicycle!
Work that is improperly carried out endangers
your safety on the bicycle!
No oil-based liquids should ever be applied
to brake pads, rim brake surfaces, brake
shoes or brake discs. This reduces the effec-
tiveness of the brakes.
Modern bicycles can be equipped with a variety
of different gear systems.
There are various options:
• Chain gear:
• Hub gear:
• Combined chain and hub gear systems.
These gear systems can be operated with differ-
ent levers.
Gear system
This operating manual describes the use of com-
mon commercial gear components on a bicycle
as an example. If your components are different,
you will nd specic information in the respec-
tive operating manual or on the website of the
manufacturer. If you have any questions about
assembling, maintaining, setting up or operating
the gears, please contact your bicycle specialist
retailer.
Use the shifter to change gears. Changing
the gears will increase or decrease the force or
speed of the bike as needed. In lower, easier
gears, you can easily ride uphill and lower physi-
cal strain. In higher gears, which are harder to
peddle in, you can reach higher speeds and
pedal at a lower cadence. You should generally
aim at riding the bike at a higher cadence and in
lower gears.
After any work on the brake system,
perform at least one test braking ac-
tion on safe, trafc-free terrain before
participating in road trafc.
Have the brake uid replaced on a
regular basis. Check the brake shoes
regularly and have them replaced
when they are worn out.
You can get more information in the brake
manufacturer’s operating instructions.
Lever (A) starting position
Lever (B) with two-way activation
Switching from a small to a
larger sprocket (Lever A)
Switching from a large to a
smaller sprocket (Lever B)
Source: Shimano
®
techdocs
Lever (A): Changing to a larger rear sprocket.
Lever (B): Changing to a smaller rear sprocket.
Lever (a): Changing to a larger chain ring.
Lever (b): Changing to a smaller chain ring.
All levers return to their initial position as soon as
they are released.
Lever A
Lever B
The gear lever can be operated as shown in this
example:
Lever B
Rear Front
Lever b
Lever A Lever a
Racing bike gear levers made by SRAM are op-
erated in a different way, for example the RED
shifter:
The gear lever behind the right brake lever
switches the chain on the rear sprockets. Activa-
tion with short lever movement switches to small-
er sprockets and long lever movement switches
to larger ones.
Gear lever, STI type, for example a Shimano lever
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