Ohlins CANNONDALE FG 9910 - Manual (Page 5)

5
NOTE!
Refer to mounting instruction for
more specific set-up data
D
The static sag should be 30
±
10 mm.
E
If the static sag is less than 20 mm,
you need to reduce spring preload.
If the static sag is
more than 40 mm,
you need to increase spring preload.
F
Adjust the spring preload according
to your rear shock mounting instruc-
tion.
Checking front ride height
A
Put your bike on a stand.
Arrange the stand so that the front
wheel is off the ground and the front
fork fully extended.
Measure the distance between the
upper fork crown and the front wheel
axle, fig 4 distance A. Make a note of
the measurement.
B
Race dressed sit on the bike, straight
above the foot pegs, with the feet
barely touching the ground.
Have somebody to measure between
the same point as before, fig 4 dis-
tance C.
C
The difference of the two measure-
ments should be 50
±
10 mm.
CAUTION!
Do not try to alter ride height by alter-
ing the spring preload.
New springs are needed.
D
If you need to change the springs,
see “Changing springs“ on page 9.
E
Stiffer springs are needed if the
difference is
more than 60 mm.
Softer springs if the difference is less
than 40 mm.
Consult your Öhlins dealer for the
right rate.
Checking rear ride height
A
Put your bike on a stand. Arrange the
stand so that the rear wheel is off the
ground and the rear suspension fully
extended.
Measure the distance between the
rear wheel axle and a point near the
rear end of the seat, for example a
seat bolt, fig 4 distance A.
Make a note of the measurement.
B
Race dressed sit on the bike, straight
above the foot pegs, with the feet
barely touching the ground. Have
somebody to measure between the
same point as before, fig 4 distance C.
C
The difference of the two measure-
ments should be 100
±
10 mm.
CAUTION!
Do not try to alter ride height by alter-
ing the spring preload.
A new spring is needed.
D
A stiffer spring is needed if the
difference is
more than 110 mm.
A softer spring if the difference is less
than 90 mm.
Consult your Öhlins dealer for a spring
of the right rate.
Should you still experience exces-
sive bottoming or that the bike feels
much to stiff and suspension travel is
not fully used, harder/softer than nor-
mal springs may be needed for the
track you are testing on.
Consult your Öhlins dealer for ad-
vice!
Fine-tuning the bike
Learning how to use the adjusters will
take time but you quickly appreciate
them once you know the tricks. Even
the specialists sometimes need a
specialist!
With the adjusters you optimize the
suspension for your, riding style and
the track you are competing on.
The same basic guide lines go for
both the front fork and the rear shock
absorber.
Too much compression damping
will give you a harsh ride as your bike
“jumps“ along the track.
With too much rebound damping
your bike will have difficulties with
several bumps in a row. The suspen-
sion will not extend fast enough be-
tween bumps, your bike will ride
lower and lower and eventually the
suspension will bottom!
External adjusters
On the Öhlins front fork the adjusters
are bleed valves, totally separated
from each other.
The compression bleed valve con-
trols the flow in the cartridge tube
during the compression stroke, the
rebound bleed valve the flow during
the rebound stroke.
CAUTION!
Using too much force when closing
the adjusters will destroy important
sealing surfaces.
Setting up the bike
4.
Checking sag and ride height.
Front sag:
A - B = 30
±
10 mm.
Front ride height:
A - C = 50
±
10 mm.
Rear sag:
A - B = 30
±
10 mm.
Rear ride height:
A - C = 100
±
10 mm.
A: Fully extended.
B: On the ground.
C: Rider on.
A: Fully extended. B: On the ground. C: Rider on.