Справочник Пользователя для Gary Fisher 2004 gary fisher bicycles
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CHAPTER THREE
Inspection, Adjustment & Lubrication
The handlebars, the part you hold with your
hands when riding a bicycle, is primarily respon-
sible for your ability to steer and control the bike.
In addition, handlebars work with the seat to
define your posture on the bike, adding comfort
and efficiency to your cycling. The handlebars are
connected to the bike by the stem (Figures 3.1.1-
3.1.4). This section explains how to inspect, adjust,
and lubricate your handlebars, stem, and bar-ends.
There are two types of stems:
•
Quill stems
have a tube, or quill (Figure 3.1.3),
fastened inside the fork by an expanding wedge.
•
Direct-connect stems
(Figure 3.1.2) clamp to
the outside of the fork steerer.
Some bikes also have extensions attached to the
handlebars, called bar-ends (Figure 3.1.6).
Inspection
If you are unsure of the safety of your handlebar
system, do not ride the bicycle; take the bicycle to
your dealer for adjustments.
Once a month
make sure the stem is in
alignment with the front wheel. Test the stem
connection to the fork by attempting to turn the
handlebars from side to side with the front wheel
locked between your knees (Figure 3.1.5). Test the
security of the handlebars by attempting to rotate
them in the stem. Make sure that no cables are
stretched or pinched by rotating the handlebars.
Check that all bolts are tight. The correct
tightness varies according to the type of stem on
your bike. If you are unsure of which type of stem
your bike is equipped with, consult your Gary
Fisher dealer. The bolts to tighten are:
• Stem expander (Figures 3.1.1 and 3.1.3): 175-260 lb•in (19.8-
29.4 Nm).
• Handlebar clamp (Figures 3.1.1-3.1.3) on:
- welded stems: 100-120 lb•in (11.3-13.6 Nm).
- welded stems: 100-120 lb•in (11.3-13.6 Nm).
HANDLEBARS, BAR-ENDS, AND STEM
Steerer clamp bolts
Figure 3.1.2 Direct-connect stem
Handlebar clamp bolts
Figure 3.1.1 Adjustable-rise
quill stem
quill stem
Angle
adjusting
bolt
Handlebar
clamp bolts
Stem
expander
bolt
WARNING
An improperly adjusted or tightened handlebar, stem, or bar-
ends can cause you to lose control and fall. Make sure the
stem, handlebar, and bar-ends are positioned and tightened
properly before riding the bike.
Figure 3.1.3 4-bolt BMX quill
stem
stem
Handlebar
clamp bolts
Stem wedge
Stem expander bolt
Quill
Handlebars, Bar-ends, and Stem