19
REAR SHOCK ABSORBER
STATIC SAG (SPRING PRELOAD)
1.
High-speed and low-speed compression damping
and rebound damping are adjustable. Sag (spring
preload) is also adjustable and only requires a C-spanner.
2.
Static sag is the primary adjustment to tune your
bike’s handling. The rear shock supports most of your
weight, so getting the sag set right will make the
difference between a good lap time or a struggle around
the track.
3.
To measure static sag: support the bike on a pit stand
or lift. Measure the distance between the cast “button”
at the end of the swingarm and the pointed part of the
number plate; record this measurement. (
Fig.13
)
NotE: it’s a good idEa to makE a maRk oN thE NumbER
platE to ENsuRE thE samE mEasuRiNg poiNt is usEd
Each timE.
4.
Take the bike off the stand or lift, compress the rear
suspension a few times, then have an assistant support
the bike upright. Measure the same distance and record
it. The difference between the two is your static sag. 35
mm is a good starting point.
5.
If adjustment is necessary, clean the threads on the
shock body, then loosen the hex screw (A) on the adjuster
ring and use a C-spanner to turn the adjuster ring.
Turning it clockwise increases preload and reduces sag;
turning it counterclockwise reduces preload and
increases sag. One turn of the adjuster ring will change
the setting approximately 1 mm.
6.
Repeat Steps 3 and 4. If necessary, repeat Step 5 to
get the sag dialed-in. When done, tighten the adjuster
ring hex screw securely. (
Fig.14
)
Fig. 12
Fig. 13
Fig. 14
REGULAR INSPECTION & ADJUSTMENTS
