Gary Fisher 2004 gary fisher bicycles Manuel D’Utilisation
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CHAPTER THREE
Inspection, Adjustment & Lubrication
Tubeless-compatible Wheel Systems
Some Gary Fisher bicycles are equipped with a Bontrager
tubeless-compatible wheel system. This system can be used with
"Tubeless" tires, and also with standard tires when an inner
tube is used. The tubeless mode requires special parts:
• Tubeless tire
• Tubeless rim
• Tubeless rim strip
• Tubeless valve stem
• Tubeless rim
• Tubeless rim strip
• Tubeless valve stem
On some models of bicycles, "Tubeless-compatible" wheelsets
are sold without these components installed.
A 'regular' tire fits the tubeless-compatible rim, but a regular
tire requires an inner tube since it does not have an imperme-
able layer to hold the air. This section explains other require-
ments of this system, and includes installation instructions.
Avoiding leaks with a tubeless tire
A properly mounted tubeless tire will ‘bleed’ air, up to 4 PSI
(0.25 ATM) per day. If a tubeless tire loses air faster than this,
check potential leakage sites. Dirt, sand, grime, or roughness
on any of the sealing surfaces may cause a tubeless tire to leak.
Check that the valve nut is tight, check for punctures, and
check all sealing surfaces:
• Tire to rim contact
• Tire to rim strip contact
• Valve stem to rim strip contact
• Rim strip to rim contact.
• Tire to rim strip contact
• Valve stem to rim strip contact
• Rim strip to rim contact.
If a tubeless tire is punctured, a small hole (less than 3mm)
can be patched from the inside of the tire with a sticky glueless
patch. If the puncture hole is greater than 3mm, or the tire
casing is damaged with broken threads instead of merely
punctured, replace the tire. If the air is leaking from the rim
strip, install a new rim strip.
If the air leaks rapidly and you can't find the air source,
it may be difficult to inflate the tire enough to locate the
puncture. However, its easy to convert from tubeless to the use
of a standard inner tube.
TUBELESS-COMPATIBLE WHEEL
SYSTEM
WARNING
A standard tire will not hold air without an inner tube and it
could lose air suddenly causing you to lose control and fall.
Always use an inner tube with a standard tire.