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The crankbrothers joplin allows you to infinitely adjust your
saddle heightquickly and easily (within the 3" range). The
Joplin is not a suspensionseatpost.
lever version Installation:
1. Install your saddle on the clamp head using a 5mm hex wrench.
2. Apply light grease and insert the post in your frame.
3. It may be necessary to turn the adjuster screw (orange
knob) to have the lever not interfere with the saddle before
it activates the seatpost. Make small changes at a time, in
either direction until the seatpost is fully active.
4. Lift and hold up the lever.
5. Cycle the post up and down 5 or 6 times to achieve a solid
feel (when the lever is released). Prior to performing this
step, the seatpost may feel "spongy". In rare cases, the step
may need to be repeated.
remote version Installation:
1. Using a 2.5mm allen wrench, adjust the adjuster screw in
the release trigger to bring the release trigger upright (parallel
with the seatpost).
2. Install your saddle on the head using a 5mm hex wrench.
3. Apply light grease and insert the post in your frame. remote
lever assembly4. Place the remote lever assembly on the handlebar
in a position that will provide easy access, and will not
interfere with other controls on the bike. Slide the clamp
onto the remote lever assembly, align the mounting holes,
and secure using a 4mm clamp screw.
5. Thread the bare cable through the remote lever assembly
and into the cable housing. Route the cable housing to the
rear of the seat tube. Be sure the handlebar can be turned
fully in both directions without the seatpost cable interfering
with the wheels, brakes, or suspension components. Zip tie
the seat post cable to other control cables or frame tubes
where necessary.
6. With the seatpost fully extended and mounted in the frame
in the highest position you will use, mark the cable housing
where it will join the cable stop on the seatpost.
7. Remove the cable from the cable housing and cut the cable
housing at your mark using cable cutters. Re-thread the cable
into the housing.
8. Thread the bare cable through the cable stop and the liner
tube (the small plastic sheath).
9. Install the cable in the groove in the top of the release
trigger. Pull the cable tight and secure using the 3mm socket
head screw and washer. Cleaning the cable with rubbing alcohol
prior to installation will provide better grip on the cable.
Crimp cable tip to bar end of cable.
10. Cut the cable so that approximately 1.5cm (about 0.5 inch)
extends beyond the release trigger. Install a cable end crimp
to prevent the cable from fraying and to prevent injury on
the sharp cable end.
11. Push the joystick in any direction and hold it there.
12. Cycle the post up and down 5 or 6 ties to achieve a solid
feel (when the joystick is released). Prior to performing
this step, the seatpost may feel "spongy". In rare cases,
the step may need to be repeated.
13. To test the setup of the remote, push down on the head
of the seatpost while pushing the joystick in any direction.
The seatpost should activate with a moderate joystick movement.
The adjuster screw on the release trigger can be tightened
to accommodate cable stretch and improve actuation. If the
adjuster screw is backed too far out and proper actuation
is not achieved, turn the adjuster screw to fully slacken
the cable, then re-tension the cable in the release trigger
as described in step 10.
Operation: To adjust the height of your seatpost:
1. To lower: Lift the lever (or push the joystick) and push
down or sit on the saddle to the desired height and release
the lever;
2. To raise: Remove weight from the saddle and lift the lever
(or push the joystick) until the desired height is achieved.
Release the lever or joystick.
3. If at any time the "spongy" feel returns, simply repeat
installation steps 4 and 5 (for the lever version) or steps
11 and 12 (for the remote version). Also, see note 3 below.
Notes:
1. If the seatpost is lifted while in the lowered position,
the inner tube will extend from the outer tube. This is normal
and it will return to the proper position once weight is applied
to the saddle. Picking up the bike by the saddle can also
cause a temporary "spongy" feel.
2. To prevent the "spongy" feel don't operate the seatpost
while upside down or a horizontal position.
3. In some cases, when the seatpost is placed in a lowered
position, your seatpost may "spring" up when un-weighted.
This is normal and caused by a pocket of air. To fix this,
simply loosen the thread ring and lower the seatpost. With
the seatpost in the lowest position, hand-tighten the thread
ring.
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