Gary Fisher 2004 gary fisher bicycles Manual Do Utilizador

CHAPTER THREE

Inspection, Adjustment & Lubrication

DERAILLEUR SHIFT SYSTEMS

Derailleur Shifting Systems

Some Gary Fisher bikes are equipped with a

derailleur shifting system that changes gears

by de-railing the chain, pulling it off one cog or

sprocket onto another. The shift system consists

of those parts of the bicycle which allows the

derailleur to shift gears, including the front

derailleur (Figure 3.4.1) or rear derailleur (Figure

3.4.2), the shifters (Figures 3.4.3-3.4.4), and the

shift cables.

There are several different types of shifters on

Gary Fisher bikes:

• Twist shifters, shifted by rotating a section of

the handlebar grip (Figure 3.4.3)

• RapidFire or E-Z Fire shifters, with one

thumb-activated shift lever and one finger-

activated shift lever, both beneath the

handlebar (Figure 3.4.4).

Inspection

In these instructions, we refer to shifting terms:

• Up-shifting is changing to a gear that is

harder to pedal: a larger chainring, or a

smaller rear cog.

• Down-shifting is changing to a gear that is

easier to pedal: a smaller chainring, or a

larger rear cog.

If your derailleur system is properly adjusted,

it is quiet. If an unusual noise follows any shift,

your derailleur cable may need to be adjusted.

If, after adjustment, the noise persists or grows

louder, stop the bicycle and try to locate the

noise. If necessary, ask your Gary Fisher dealer to

identify and correct any problems.

Once a month

check the shift cables for

kinks, rust, broken strands, or frayed ends. Also

check the housing for loose wire strands, bent

ends, cuts, and wear. If you suspect a problem

with your shift cables, do not ride your bicycle;

follow the instructions

To replace a shift cable

, or

have your Gary Fisher dealer service your bicycle.

Once a month

check the operation of the

left shift levers/front derailleur. When down-

Figure 3.4.1 Front derailleur

Cable

clamp

bolt

Adjusting

screws

Figure 3.4.2 Rear derailleur

Cable

clamp

bolt

Adjusting

screws

Adjusting

barrel

Figure 3.4.4 RapidFire

Thumb trigger

Finger trigger

Figure 3.4.3 Twist