Rock Shox 2000 JUDY RACE SL Manuel D'utilisation page 4

Tuning • All Travel
Tuning
RockShox Judy forks can be tuned for your particular weight, riding style, and terrain. Our forks are set up for the
140 to 180lb (65 to 80kg), all-around rider who spends equal time riding every off-road terrain imaginable. You may
benefit by making tuning adjustments to suit your specific needs. Before you tune your fork, ride your bike. Your fork
may already be optimally tuned for you.
When tuning suspension, always make one change at a time and write it down. This allows you to understand how
each change affects your ride.
S
ETTING
Judy forks are designed to sag when you are sitting on the bike. Sag is the compression of the fork caused by the
rider's weight. Proper sag allows the front wheel to follow the contour of the terrain as you ride. Sag is adjusted by
turning the preload adjuster knobs clockwise for the least sag and fully counterclockwise for the most sag. Do not
turn the preload adjusters past their limit. The optimum sag settings are shown below:
Fork Travel
63 mm
80 mm
100 mm
To measure sag, slide the fork boot out of the way and install a zip tie on the upper tube so that it is flush against
the dust wiper. Sit on the bike in normal riding position. Step off your bike and measure from the bottom of the zip
tie to the top of the dust wiper. This measurement is your sag. If you are unable to achieve optimum sag, you may
need to change your fork's spring rate.
Important: DO NOT turn the preload adjusters past their stop limits. Failure to observe this
instruction could result in premature failure of the preload adjuster assembly.
C
HANGING THE
Spring rate is the amount of force needed to compress a spring a given distance. Exchanging the coil springs with
ones of a higher or lower rate will alter the overall feel of your fork. Higher spring rates make the fork more "stiff,"
while lower spring rates make the fork more "supple." Springs may be purchased through a RockShox dealer.
T :
O CHANGE COIL SPRINGS
1. Remove the top caps using a 24mm six-point socket.
Important: When the top caps are removed, hold the leg vertically
to avoid loss of oil from the Hydracoil damping system.
2. Remove the spring stack assemblies (Fig. 4).
3. J J u u d d y y X X L L o o n n l l y y : : Remove the spring spacer from the coil spring; Pull the coil
spring from the spring spacer.
4. Replace the springs with softer or firmer rated coil springs and reassemble
the spring stacks.
5. Install the spring stack assemblies in the upper tubes. Grease the top caps and install them in the upper
tubes, starting the top cap threads by hand. Tighten the top caps until they are flush with the upper tubes.
6. Torque the top caps per "Maintenance/Torque Specifications" section.
8. You may need to adjust the top caps to obtain the same sag/preload feel (see "Setting Sag").
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S
AG
Sag
7 -15 mm
13 - 20 mm
18 - 25 mm
S R
PRING ATE
Fig. 4
PN 950-003129-00, Rev. A
E R A
XTERNAL EBOUND DJUSTER
To change the rebound damping on your Judy, locate the adjuster knob on the lower right leg of the fork. A clockwise
adjustment will increase the rebound damping; a counterclockwise adjustment will reduce the rebound damping.
Small changes in the knob position will make large changes in damping on the trail. Start with the knob in the
middle of the range and increase or decrease the damping as needed.
Important: The knob will only rotate 90 degrees for full range of adjustment. Do not turn the
external rebound adjuster past their stop limits. Failure to observe this instruction could result in
premature failure of the rebound adjuster assembly.
C O
HANGING IL IN THE
The rebound damping of your Judy may be tuned by changing the oil weight. If the rebound is too quick, you may
want to put a heavier weight oil into the fork. To change the oil follow the procedure under "Every Year or One
Hundred Hours of Riding". Different weight RockShox Oil may be purchased through a RockShox dealer.
Note: RockShox factory standard is Medium (5 wt.) RockShox Oil.
C
HANGING TRAVEL WITH THE
Your fork is equipped with the All Travel system. The fork travel can be setup in any one of three configurations: 63,
80, or 100 mm. To change travel, follow the disassembly and assembly procedures described in "After 100 Hours of
Riding."
With the damper rods and springs out, you will see two All Travel spacers for each leg of the fork. Follow the
instructions below to assemble the fork with the desired travel.
Note: It is necessary to disassemble your fork to change its travel. Modifying the travel may
require tuning the spring rate. Increasing travel may require lower rate springs to fully use the
travel. Shortening travel may require higher rate springs to prevent bottom-out. Consult "Setting
Sag" and "Changing the Spring Rate" section if required.
63mm travel
63mm Travel: Place both spacers below the negative spring as shown.
80mm Travel: Place one spacer below the negative spring and one on top of the plunger/damper assembly as shown.
100mm Travel: Place both spacers on top of the plunger/damper assembly as shown.
PN 950-003129-00, Rev. A
K (J SL, R , XL)
NOB UDY ACE AND
H C S
YDRA OIL YSTEM
A T S
LL RAVEL YSTEM
80mm travel 100mm travel
English
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