10
TUNING
Your Lefty front fork is very “tunable” to your weight
and riding style. The results of the suspension
adjustment you make will bring your Lefty into tune
with your riding style and personal dynamics (weight,
experience, and abilities). Suspension adjustment
and the resulting “feel” of the ride is a very personal
matter. And, so careful attention to detail is required
to make adjustments successful.
SAG
Sag is the distance the fork compresses when you
sit on the bike with your static weight. Adjusting
preload affects the amount of sag. We recommend
adjusting the sag so it is 25% of the forks overall
travel.
To measure the sag
1. With the rider off of the bike, measure from the
floor to the top of the handlebar closest to the
stem intersection.
2. Now, sit on the bike in a natural riding position
with both feet on the pedals. So that the
bicycle suspension system is compressed
under the static weight of the rider.
3. Measure the distance from the floor to the top
of the handlebar closest to the stem
intersection. The difference in these two
measurements is the sag.
Adjusting sag can be done in two ways; either
by changing the number of installed preload
shims, or by changing the installed spring.
Adding and removing preload shims
Adding and removing preload shims can increase or
decrease sag.
CAUTION :
Four is the maximum number of preload
shims recommend by Cannondale. If you
need to further decrease the amount of sag, a
stiffer spring kit will be needed.
To decrease sag, add preload shims.
To increase sag, remove preload shims.
1. Loosen the upper clamp bolt using a 5mm
Allen wrench.
2. Remove the upper collar using a 40mm
headset wrench or green Park pin spanner.
3. Compress the fork to expose the preload
assembly.
4. Chose the desired amount of shims to be
added/removed.
5. Add or remove shims as indicated below.
The shims are located between the top washer
and preload spacer. Refer to "Illustrations"
starting on page 20.
6. Extend the fork and reinstall the upper collar
using a coat of grease on the threads.
TORQUE : Upper collar - 250.0 Lbf•in (28.0
N•m).
7. Tighten the upper clamp bolt.
TORQUE : Upper clamp 60.0 lbf•in (7.0 N•m).
8. Recheck sag.
If suggested sag can not be achieve by adding or
removin g shims, th e in stalled sp ring mu st b e
changed.
MAX
JAKE
To t a l Tr a v e l
(mm)
130.0
100.0
S u g g e s t e d
Sag (mm)
32.5
25.0
Summary of Contents for Lefty Jake
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