KoubaLink.com
Motorcycle Suspension Components
with other products available from Kientech
Engineering
Fits: 2002-up Honda CRF450R & 04-up CRF250R/X CRF2 & CRF3.
CRF4 link lowers the rear of the 05-up CRF450X/M 1.75"
* For installed pictures on an 04 CRF250X and lowering amounts for each model scroll to the bottom of this page.
1) Raise the motorcycle with a bike stand, milk crate, etc., so the rear wheel is just slightlyCRF3 link shown above. CRF2 link is slightly shorter and will lower the rear .4 inches less on most models. *Scroll down to see the chart at the bottom for exact lowering amounts for all models. (CRF4 links lower the rear of the 05 CRF450X/M 1 3/4")
off the ground. Remove the two 19 mm nuts that hold the “H” link to the rocker and the
engine cradle and push the bolts out the left side/front mounting bolt first. The lower chain
roller comes out with the front bolt and the swing arm may need to be raised slightly to
allow the rear bolt head to clear the chain. **If you have the Pro-moto Billet side stand or the
"X" model CRF, the side stand must be removed before the front link mounting bolt can be
removed.
2) The new links come with only the bearings and seals, so install
the center sleeve
and the
two step washers
(flat side out) from your old OEM linkinto
the new link. Install the new link
on the bike (rear mounting bolt first) by pushing the mounting bolts in
from the left side. You
may have to raise the swingarm slightly to align the front mounting holes.
3) After installing the KoubaLinks, be sure the 90 degree grease
fitting is facing down. *Left
link engraving will be upside down and backwards, right side will be readable
left to right.
Install the washers/nuts, torque to 35 lbs-ft.
4) For the best performance, set the sag (amount of vertical movement
of the rear axle
FROM no weight to bike weight plus rider weight) at 3.10" with rider in
full riding gear,
standing on the pegs. Slide the fork tubes up until they barely clear
the bottom of the stock
bars. *Do not over torque the triple clamp bolts. (14 lbs-ft
lower, 17 lbs-ft. upper) That
should leave 3/8" showing below the standard line on the "R" models.
If the links are for
lowering purposes ONLY, sag can be set at 100mm/ 3.90". The easiest
way we have found to
adjust the rear spring preload is to use a long punch to loosen the top
jam nut from the right
side and grasp the spring at the bottom and turn the spring and the nut
at the same time.
**May have to put some lube on the shock threads to allow the nut to turn
freely. Turning the
spring/nut "clockwise" increases the preload and decreases the sag.
**Do not forget to
tighten the jam nut with the punch after setting the sag.
5) For additional lowering of the front, the bars can be spaced up
by installing a washer of
1/4" max thickness on top of the flanged washer above the top rubber mount
on both sides.
This will allow the forks to be slide up farther, but is not recommended
on all CRF models
unless you require quicker steering. Disclaimer: Lowering the
rear more than the front can
change the geometry and could affect the handling, so be careful out there.
If you like what the KoubaLink does 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.
Norm Kouba
Email: njkouba@ix.netcom.com
Ordering info. and pricing can be found on our ORDER FORM.
For all sorts of useful info. on the new CRF250 models
http://www.rickramsey.net/CRF250X.htm
Left Side View After Installation 04 CRF250X Right Side View After Installation
Chart Below Shows Rear Lowering Amounts For Our CR/CRF Links:
(All amounts are measured straite up from the center of the rear axle with the axle/chain adjusters
in the forward part of the adjustment range or as they came from Honda.)*(CRF4 lowering links are "only" recommended for the 2005-up CRF450"X" as they can cause rubbing and geometry problems on other models.)
Year/Model CRF2 CRF3 CRF4
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2000-01 CR125/250 .6" 1.1"2002-03 CR125/250 1.0" 1.50"
2004-07 CR125/250 1.25" 1.75"
2004-08 CRF250R 1.0" 1.75"
2004-05 CRF250X .85" 1.60"
2006-08 CRF250X .625 1.50"
2002 CRF450R .625" 1.50"
2003-04 CRF450R 1.25" 1.75"
2005-08 CRF450R .85" 1.35"
2005-08 CRF450X .125" .75" 1.75"
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OUR GOAL
IS TO BUILD
THE BEST POSSIBLE
SUSPENSION COMPONENTS
AND PROVIDE
THE CUSTOMER
WITH THE HIGHEST
LEVEL OF SERVICE.
ALL OUR PRODUCTS ARE MADE IN THE USA