Tuning; Spring Preload Adjustment - Rock Shox Judy C Manual Del Propietário

DONE TO CHANGE LENGTH
OR REPLACE THE STEERER TUBE
/
SERIOUS AND OR FATAL INJURIES
4. Install the headset race firmly against the top of the fork crown once the steerer tube has been cut to
proper length.
5. Install the upper tubes into the lower crown and locate the lower crown so that 170mm of upper tubes
extends above the lower crown. Before tightening the lower crown bolts, verify that one lower crown
shim is located between the slot of each upper tube clamp. Rotate the lower crown shim to prevent the
shim edge from scratching the upper tube. Torque the lower crown bolts to 90in-lb (10 Nm).
I : T
MPORTANT HE LOWER CROWNS MUST BE LOCATED WITH
LOWER CROWN AND THE LOWER CROWN SHIMS MUST BE USED WITH THE
TO FOLLOW THESE INSTRUCTIONS CAN CAUSE THE BOTTOM OF THE LOWER CROWN TO HIT THE FRONT TIRE
OR RESULT IN ADDITIONAL STRESSES TO THE UPPER TUBES RESULTING IN THE LOSS OF CONTROL OF THE BICYCLE
WITH POSSIBLE SERIOUS AND
6. Assemble the headset, upper crown and stem on the bicycle. Adjust the headset so you feel no play or
drag. Complete the installation of the headset and stem according to the manufacturer's instructions.
Torque all the upper crown bolts to 90in-lb (10 Nm).
7. Complete the rest of the XLC installation by following steps three through seven under "Installation
Instructions (Judy C/XC/100)," page 7.
RockShox Judy forks can be tuned to 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. Because you're probably not that rider, you can benefit by making tuning adjustments to suit
your specific needs. For maximum tuning flexibility Spring Tuning Kits are available.
When tuning suspension, always make one change at a time and write it down. Keeping a record lets you know
what changes you have tried and suggests what changes you might try. Ask a shop or local riders what they
have found works well. These resources are typically your best bet, but don't hesitate to call RockShox about
specific tuning needs. A list of phone numbers is on Page 20.
Judy is designed to compress (sag) when you are sitting on the bike. This sag allows the front wheel to stay in
contact with the ground when braking and cornering over rough and uneven terrain. The optimum settings
are 7 to 15mm sag for 63mm travel; 13 to 20mm for 80mm travel; and 18 to 25mm for 100mm travel.
Changing the preload alters the sag and firmness of the initial fork movement. To measure sag, install a zip
tie on the upper tube so that it is flush against the Resi-wiper seal; sit on the bike with normal riding apparel;
then step off your bike and measure the bottom of the zip tie to the top of the wiper. This measurement is the
amount of sag. For example, heavier, more aggressive riders need more spring preload to maintain proper ride
height and allow more of the fork's travel to be used during bump impact.
To Change Preload: The top cap adjustment knob on each leg adjusts the sag of the fork (the preload on the
spring stack). When the adjustment knobs are turned full clockwise, the fork will sag the least and be the
PN 950-001770-01, R
, ,
DIAMETER OR HEADSET TYPE
,
THIS COULD RESULT IN LOSS OF CONTROL OF THE BICYCLE WITH POSSIBLE
.
/
OR FATAL INJURIES
Tuning Your Fork
R H
IDE EIGHT AND
B
EV
(
THREADED OR THREADLESS
170
MM OF EXPOSED UPPER TUBES ABOVE THE
.
S P A
PRING RELOAD
). DO NOT
J XLC
UDY LOWER CROWN
DJUSTMENT
REMOVE
. F
AILURE
,
P 9
AGE