Bontrager
airrush regulator
For your safety and the
enjoyment of this product,
please read these instructions
in their entirety before using
your AirRush.
The AirRush is a CO
2
inflator.
It fits both presta valves and
schraeder valves.
See the Safety instructions and Warning.
to install a Co
2
cartridge
Do not install a cartridge until you are ready to inflate a
tire. After a cartridge is punctured during attachment to
the inflator, it might slowly lose air over time.
Use only 12-gram or 16-gram threaded CO
2
cartridges in
perfect condition.
1. Turn the valve of the AirRush
(Figure 2) completely to the CLOSE
position.
2. Gently start the threads of a
cartridge into the threads of the
AirRush.
• After several turns, a “puncture
pin” will open the cartridge, but
additional turns are required to
close the seal between the cartridge
and inflator. Until the seal is closed,
some CO
2
may escape from a
punctured cartridge.
3. After the cartridge threads are
engaged, quickly tighten the CO
2
cartridge into the head until snug.
4. Slide the cartridge grip onto the
cartridge (Figure 3).
• The cartridge grip insulates your
hand; when inflating, the cartridge
will get very cold.
The AirRush is now ready to inflate a tire.
to inflate a tire
When inflating, always hold the AirRush in an upright
position, with the threaded neck of the cartridge pointing
up (Figure 5).
To stop the CO
2
flow, turn the valve to CLOSE; DO NOT
unthread the cartridge. Read the Safety instructions and
Warning.
1. Remove the schrader valve cap or fully open the presta
valve of the inner tube.
2. With one thumb, hold the tire so that the inner tube
valve protrudes from the rim (Figure 4). With the
other hand, grasp the head of the AirRush and ease it
onto the inner tube valve (Figure 5).
• Once the AirRush is on the inner tube
valve, you can release the tire.
3. Slightly turn the AirRush valve to
OPEN. This will release CO
2
into the
tire.
• Avoid inflating the tire too rapidly—
make sure the tire beads are
correctly seated in the rim. You
can close the AirRush valve to stop
inflating while you check the bead.
Follow the inflation recommenda-
tions on the side of the tire.
4. To stop the flow of CO
2
, turn the
AirRush valve back to CLOSE.
5. Remove the AirRush from the inner
tube valve.
6. Close the presta valve or replace the
schraeder valve cap.
During inflation, the cold will cause the
cartridge grip to shrink. To remove the
cartridge grip, warm the cartridge.
Safety instructions
A CO
2
cartridge contains CO
2
(carbon dioxide) at very
high pressure. Over-exposure to CO
2
could be fatal. If the
cartridge is punctured or caused to leak at a high rate,
the cartridge may explode or become a projectile (fly
through the air), causing severe injury or death. Follow
these steps to prevent puncture, explosion, or exposure to
CO
2
gas:
Use and dispose of cartridges properly.
• Never puncture a CO
2
cartridge.
• Keep CO
2
cartridges away from heat above 120°F
(49°C). A closed car, or even direct sunlight, can reach
a temperature higher than this. Overheating may
rupture the cartridge. Do not incinerate.
• Do not completely unscrew the AirRush head from the
CO
2
cartridge until the cartridge is empty. Removing
the AirRush head from a CO2 cartridge while CO
2
remains may cause the cartridge to become a projec-
tile. Never dispose of a cartridge that still contains
CO
2
.
Only use compatible cartridges that are in perfect
condition.
• Never attempt to refill a disposable cartridge.
• In the event of any actual or suspected malfunction or
damage, discontinue use of the AirRush and dispose of
it properly.
• Use only threaded CO
2
cartridges. Attempting to install
a non-compatible cartridge could cause the cartridge
to become a projectile.
Avoid contact with CO
2
.
• As CO
2
leaves the cartridge, it drops to a very low
temperature and could cause frostbite to exposed skin.
• Do not discharge the inflator towards your face or body,
or other people.
• Do not inhale CO
2
.
• Keep cartridges and the AirRush out of the reach of
children.
WarnIng
Contents of cartridge under pressure. Sudden
release of pressure can cause severe injury or
death. always follow the safety instructions.
Figure 1. AirRush Regulator inflator
Figure 3. Black rubber
cartridge grip
Figure 2. AirRush valve:
Clockwise to close
Figure 5. Inflating the
tire with the cartridge in
the upright position
©2008 Trek Bicycle Corporation, Waterloo, Wisconsin 59534 USA
Bontrager is a registered trademark of Trek Bicycle Corporation
All rights reserved
Bontrager Limited warranty
Bontrager warrants each new Bontrager component or
wheelset against defects in workmanship and materials:
For five years-
• All Bontrager components and accessories, except
consumables such as tires and inner tubes.
For one year-
• Bontrager consumables such as tires and inner tubes.
This warranty does not cover-
• Normal wear and tear
• Improper assembly
• Improper follow-up maintenance
• Installation of parts or accessories not originally
intended for or compatible with the Bontrager fork,
components, or wheelsets as sold
• Damage or failure due to accident, misuse, abuse, or
neglect
• Labor charges for part replacement or changeover
This warranty is void in its entirety by any modification of
the wheelset or components.
This warranty is expressly limited to the repair or
replacement of a defective item and is the sole remedy
of the warranty. This warranty extends from the date of
purchase, applies only to the original owner, and is not
transferable. Bontrager is not responsible for incidental
or consequential damages. Some states do not allow the
exclusion of incidental or consequential damages, so the
above exclusion may not apply to you.
Claims under this warranty must be made through
an authorized Bontrager dealer. Proof of purchase is
required.
This warranty gives the consumer specific legal rights,
and those rights may vary from place to place. This
warranty does not affect the statutory rights of the
consumer.
Figure 4. Squeeze the
tire to extend the valve
