Gary Fisher 2004 gary fisher bicycles ユーザーズマニュアル
14
15
CHAPTER ONE
Guide to Safe On-and-Off Road Operation
drivetrain. Don’t let the bike fall down, as this may cut the
handlebar grips, or tear the seat. Incorrect use of bike racks
may bend your wheels, as can riding over some obstacles.
These are just a few of the potential hazards you and your bike
may encounter. If you suspect your bicycle has been damaged in
any way, or tampered with, ensure there is no problem, or take it
to your Gary Fisher dealer for inspection and repair.
Use good shifting techniques.
Some Fisher bicycles are equipped with a derailleur system,
where shifting is done by derailing, or moving the chain from
one sprocket to another. Other Fisher bikes may be equipped with
internal gearing where shifting is done inside the rear hub. Read
the information for your type of bicycle in the following sections:
• Shifting a bike with a derailleur
The left-hand shifter controls the front derailleur and the
right-hand shifter controls the rear derailleur. Use only one
shifter at a time. Choose the gear combination most comfort-
able for riding conditions, one that allows you to maintain a
constant rate of pedaling. It is not essential that various gear
combinations be used in sequence.
When shifting, plan ahead. Shift gears only when the pedals
and chain are moving forward. Never attempt to shift gears
when stopped or back-pedaling. When you shift, reduce the
force on the pedals; excessive chain tension makes shifting
difficult. This provides quicker, smoother shifting, will help
avoid excessive chain and gear wear, and also will help avoid
bent chains, derailleurs, and chainrings. Avoid shifting when
going over bumpy surfaces, or railroad tracks; the chain may
not shift properly, or may fall off.
With modern indexed shifting systems, a movement of the
shifter from one position to the next (or movement of the shifter
to the "shift" position) should promptly move the chain from one
gear to the next.
• Shifting a bike with internal gearing
When shifting gears, plan ahead. Shifting gears is best
performed when coasting, stopped, or back pedaling. If you
must shift while pedaling, reduce your pressure on the pedals.
Excessive chain tension makes shifting difficult.
Choose the gear most comfortable for riding conditions. You
should be able to maintain a constant rate of pedaling.