Part Number 243705
Figure 1- Bontrager seatpost
Read this manual before you ride
Inspect your seatpost regularly
Installation instructions
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Bontrager warranty
© Copyright Trek Bicycle Corporation 2003
All rights reserved
Generally, it is easier to remove the saddle with the seatpost held firmly in
the bike frame. However, the old seatpost may be corroded slightly, making
removal or the seatpost difficult without the seat attached for leverage and
grip. These instructions explain how to remove a seatpost that may be slightly
corroded.
To remove an old seatpost
1. Loosen the seatpost binder bolt.
2. Twist the saddle to loosen and partially remove the seatpost from the frame.
3. Re-tighten the seatpost binder bolt.
4. Loosen the saddle clamp bolts enough to remove the saddle from the saddle
clamp.
5. Remove the seatpost.
To install the seatpost
1. Visually inspect the top edge and interior surface of the seat tube for burrs or
deformation that might mar the seatpost.
2. With your finger, again check the seat tube.
If there are any rough spots or burrs, remove them before going to the next step.
3. Grease the seatpost, except for models with a carbon fiber seatpost tube.
Apply a light bearing grease to the seatpost where it inserts into the seat tube. This
helps prevent galvanic corrosion where the aluminum seatpost can chemically bond
to the steel, aluminum, carbon, or titanium seat tube.
Some manufacturers tell you not to grease the seatpost with some
frames. As an example, Trek says that a special insert inside the
seat tube of OCLV carbon frames means you should NOT grease a
seatpost inserted into an OCLV frame. If you are unsure, check with
the manufacturer.
5. Insert the seatpost into the frame to its minimum insertion
mark.
6. Tighten the seat clamp bolt.
To install the saddle
1. Loosen the saddle clamp bolt (Figure 4).
2. Slide the saddle rails into the rail grooves of the compres-
sion wedges.
3. Adjust the tilt and setback of the saddle to your preference.
Figure 3- Bontrager saddle rails
clamping mechanism
4. Follow the Inspection procedures to tighten the saddle
clamp.
Figure 4- Exploded view of saddle clamp
To adjust the saddle tilt
1. Loosen the saddle clamp bolt several turns.
2. While tilting the saddle, apply pressure to the top of the
saddle directly above the saddle clamp.
Pressure on the saddle helps release the compression wedges.
3. Tilt the saddle to the desired angle.
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4. Follow the Inspection procedures to re-tighten the saddle
clamp bolt.
To adjust the saddle height
1. Loosen the seatpost binder bolt, or quick-release.
2. Slide the seatpost up or down to your preferred saddle
position.
3. Make sure the minimum insertion mark (Figure 4) on the
seatpost is not visible above the bike frame. A minimum of 2
1/2 inches (64 mm) of seatpost must remain in the frame.
4. Re-tighten the seatpost quick-release, or bolt, as described in
Inspection
Figure 5- Minimum insertion
mark on seatpost
A seatpost that is positioned too high can damage the bike
and can cause you to lose control and fall. Make sure the
minimum insertion mark (Figure 5) is inside the frame.
Bontrager Warranty
Trek Bicycle Corporation warrants each new Bontrager seatpost against defects
in workmanship and materials for the a period of one year from the date of sale.
This warranty is expressly limited to the repair or replacement of a defective
seatpost and is the sole remedy of the warranty. This warranty applies only to the
original owner and is not transferable.
Claims under this warranty must be made through an authorized Bontrager
dealer. Proof of purchase is required.
The warranty does not cover normal wear and tear, improper assembly or
follow-up maintenance, or installation of parts or accessories not originally
intended or compatible with the seatpost as sold.
The warranty does not apply to damage or failure due to accident, misuse,
abuse, or neglect. Modification of the seatpost shall void this warranty.
Trek Bicycle Corporation shall not be responsible for incidental or consequen-
tial damages. Some states do not allow the exclusion of incidental or consequen-
tial damages, so the above exclusion may not apply to you. Labor charges for
parts changeovers are not covered by the warranty.
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.
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