Installation Instructions
Fits: 1995-up KTM 400/620/625/640 Adventurer, Duke, LC4, SM, & 03-up
SXC.
Lowers Rear 1.75-2.0" (Depending on model)
**Will not work on any of the 900cc + models with the linkless rear suspension.
:-(

1) Raise
the motorcycle with a bike stand, milk crate, etc., so the rear wheel is
just
slightly off the ground. Remove the 19 mm nut from the left end of
the rear link
mounting bolt (rocker end) and push that mounting bolt out the right side.
(Raise
up on the swingarm slightly to allow it to slide out easily.) Next
remove both (left
& right) 18 mm nuts off the front link mounting bolt. (frame end) *You
can keep
that bolt from turning by holding it with the 6 mm nut that is on the outer
ends.
After removing both the 18 mm nuts, you can remove both links off the mounting
bolt ends and you should be ready to install the longer KoubaLinks.
2)
Install the new links in the reverse order of the removal by installing
the small
end of both links on each side of the the front mounting bolt and install
both 19
mm nuts. When installing the KoubaLinks, the engraving is to the outside
and
readable from the right side, the left link engraving will read upside
down and
backwards. Both links are identical. Next, lower the swing
arm down until the
holes in the links line up with the hole in the rear rocker mount, push
the
mounting bolt in from the right side and install the 18 mm nut. Torque
all three
18 mm nuts to approximately 35 ft-lbs.
3)
These links fit all of the above model KTM's, and will lower the rear of
the
Adventurer and LC4 1.75 inches, or 2 inches for all other models. (*The
bottom
of the spring on the 625SXC/SMC will contact the swingarm tunnel when fully
extended and you may need to file the spring or the tunnel approx. .040"
for
clearance. The rear ride height can be changed by tightening or loosening
the
spring preload, but recommend the KTM recommended sag for your model if
you
prefer the above lowering amounts. You may want to check the rear
sag after you
install these links, as some bikes have had the rear spring preload backed
off
beyond the specs. in an attempt to lower the rear. Sag: = (amount
of vertical
movement of the rear axle FROM no weight to bike weight PLUS rider weight
in
full riding gear standing on the pegs.) This sag adjustment can be
changed by
turning the two large nuts on top of the rear spring. (More preload
= less sag, and
less preload = more sag. Turning the spring preload nuts clockwise will
increase
the preload and visa versa. The easiest way we have found to change the
preload
adjustment is to loosen the top jam nut, lube the threads on the shock,
and turn
the spring and all by grasping the spring body and turning spring, nut,
and all.
*The spring & nut will turn easier if the rear wheel is off the
ground.
4) The
front fork tubes can be slid up in the triple clamps approx. 1 inch until
the top
of the fork caps are even with the underside of the stock handlebars.
Only slide
the fork tubes up until the rider is comfortable with the way the bike
rides and
turns. If the front pushes or will not turn quick enough we recommend lessening
the rear sag over sliding the fork tubes up farther than the 1 inch.
Disclaimer:
Lowering the rear more than the front and visa versa can change the bikes
geometry and could affect the handling, so be careful out there.
If you like
what the KoubaLinks do for your suspension, please tell everyone, if you
do not, please tell us. We can be contacted at our email address
below and are always interested in your questions or comments.