products available from Kientech Engineering
2013-up Gas/Gas EC250/300 and all 2014-up dirt models. (Both 2 & 4
PN GG13-2 link lowers the rear 1.5". Replaces Gas/Gas link assembly
not fit the 2013 Gas/Gas XC250 /300 or any bike that does not have
the one piece link. The KoubaLink GG13-2 replaces the stock link
that has the casting number on the cross piece of "BF30-001CT-4512".
GG13-2 link shown above.
1) Raise the
motorcycle with a bike stand, milk crate, etc., so the rear wheel is just
slightly off the ground. Loosen and remove the two 17 mm nuts from
the link mounting bolts that hold the stock “H” link to the rocker and
engine cradle. (Nut is on the right end of the front mounting bolt
and left end of the rear mounting bolt). Then push the rear mounting
bolt out the right side. You may need to lift up on the rear wheel
slightly to allow the bolt to slide out freely. Now push the front
mounting bolt out the left side. You may need to raise the rear wheel
a little after the bolt is removed to allow the link to fall out the bottom.
2) The new link comes
with only the bearings and seals, so put some grease on the needle bearings
in the KoubaLink and install the center sleeve and both end washers from
your OEM link into the new KoubaLink. Install the new link on the
bike (bearing end forward) with the grease fitting facing down and towards
the rear by pushing the front mounting bolt in from the left side, be sure
the flat on the bolt head is aligned with the tab on the clevis.
Next install the fork end mounting bolt from the right side. You
will have to raise the swingarm to install the fork end mounting bolt as
the KoubaLink is a little longer than the OEM link. *Left link engraving
will be upside down and backwards, right side will be readable left to
right. You need to pump some grease in now as sometimes tightening
the mounting bolt nuts can seal the bearings too tight to allow the air
to escape. Torque the mounting bolt nuts to the Gas/Gas recommended
100Nm = approx 75 ft/lbs.
3) If the link is used
for lowering purposes only we recommend the rear race sag be set at the
Gas/Gas recommended 105 mm's = (approx. 4.125") and you will get the amount
of laden rear lowering claimed for that link. You can run less rear
sag for a better ride but that does take away from the laden lowering amounts.
If you need to reset the rear race sag the easiest way we have found to
adjust the rear spring preload is to use a long punch to loosen the top
jam nut and turn the spring and the preload nut at the same time.
**You 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 spring jam nut
after setting the sag.
4) You can slide the fork
tubes up from the stock position by loosening the pinch bolts on the triple
clamps. How much you need to slide them up will depend on the amount
of rear race sag and how quickly you want it to turn. Just keep in
mind that lowering the rear more than the front slows the steering but
makes it more stable on the striates and visa versa. However much
you change the fork tubes, be sure they are both set at the same position
and that the triple clamp pinch bolts are torqued. *Do
not over torque the triple clamp bolts. (Gas/Gas recommends
11Nm = 96 in/lbs for the lower clamps and 15Nm = 132 in/lbs for the uppers.)
Sliding the fork tubes up farther than the stock handle bars and mounts
allow could let tire hit the fender if the forks are bottomed. :-(
or 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.
info. and pricing can be found on ourORDER