
28
GEARS - HOW TO OPERATE
derailleur Gears
Most multi-speed bicycles today are equipped with what are
known as derailleur gears. They operate using a system of levers
and mechanisms to move the drive chain between different sized
driving gears or cogs. The purpose of gears is to let you maintain
a constant, steady pedaling pace under varying conditions. This
means your riding will be less tiring without unnecessary straining
up hills or fast pedaling down hill. Bicycles come with a variety of
gear configurations from 5 to 30 speeds. A 5 or 6 speed bicycle will
typically have a single front chainwheel, a rear derailleur, and 5 or 6
cogs on the rear hub. Bicycles with more gears will additionally have
a front derailleur, a front chainwheel with 2-3 cogs, and up to 10 cogs
on the rear hub.
operating principles
No matter how many gears, the operating principles are the same.
The front derailleur is operated by the left shift lever and the rear
derailleur by the right. To operate you must be pedaling forward. You
can not shift derailleur gears when you are stopped or when pedaling
backwards. Before shifting ease up on your pedaling pressure. For
a smooth gear change when approaching a hill, shift to a lower gear
BEFORE your pedaling speed slows down too much. When coming
to a stop, shift to a lower gear first so it will be easier when you start
riding again. If, after selecting a new gear position, you hear a slight
rubbing noise from the front or rear gears, some adjustments may be
necessary. Gently adjust the appropriate shifter using the barrel
adjusters until the noise goes away. For optimal performance and
extended chain life, it is recommended that you avoid using the
extreme combinations of gear positions (Refer to diagram on page
29) for extended periods. It is recommended that a trained bicycle
technician perform all adjustments to the shifters and derailleurs.
drivetrain
Front Derailleur
Guide Pulley
Rear Derailleur
Front Chainwheels
Crank Arm
Pedal
Derailleur Control
Cable
Freewheel
Cogs
Summary of Contents for Ezip
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