Ohlins CANNONDALE FG 9910 User Manual
Page 7
7
General handling set-up
A
Front end falls into the curves
(over-steering) especially in sand.
Steep front fork angle. Front end too
low in comparison to rear end.
✓
Increase the front fork
compression damping.
✓
Change to harder springs.
✓
Lower fork leg approximately
5 mm in the triple clamp.
B
Front end ”ploughs”, understeers.
Shallow front fork angle. Front end
too high in comparison to rear end.
✓
Decrease the front fork
compression damping.
✓
Raise the fork legs approximately
5 mm in the triple clamp.
✓
Change to softer fork springs.
C
Front end unstable at high speed,
unstable when accelerating out of
curves.
Front fork angle too steep. Front end
too low in comparison to rear end.
✓
Lower the fork legs approxi-
mately 5 mm in triple clamp.
✓
Change the front fork springs to
harder ones.
D
Front end unstable during decel-
eration.
Front fork angle too steep during
braking. Front end too low or rear
end too high.
✓
Increase the oil level in the
front fork.
✓
Change to harder fork springs.
✓
Increase the front fork
compression damping.
Front suspension.
A
Front fork travel is not used to its
full capacity. Harsh feeling, front
wheel grip is not satisfactory in
bumpy turns.
Suspension too hard.
✓
Decrease the front fork
compression damping.
✓
Change to softer springs.
B
Suspension bottoming, too soft
during entire travel.
Spring too weak or compression
damping too soft.
✓
Increase oil level 5 mm.
✓
Increase compression damping.
✓
Change to stiffer springs.
C
Suspension bottoming, but can
handle smaller bumps.
Damping force not progressive
enough.
✓
Increase the oil level.
D
Can handle smaller bumps but is
too hard during the last part of the
travel.
Damping force is too progressive.
✓
Decrease the oil level.
E
Front end feels low, initially feels
soft, but is not bottoming.
The initial spring rate is too soft or
spring preload is too low.
✓
Increase the spring preload.
E
Feels harsh over small bumps, but
using full wheel travel.
Too much spring preload or too much
compression damping.
✓
Increase the oil level or change
to softer springs.
✓
Decrease the compression
damping.
✓
Decrease the spring preload.
✓
Clean the oil seals and scrapers.
Use Öhlins grease 148-01 for
regreasing.
F
Can handle the first in a series of
bumps but feels hard after a few
more bumps. Frontal grip insuffi-
cient in rough and bumpy turns.
Too much rebound damping.
✓
Decrease the rebound damping.
G
Front end rebound too fast after a
bump. Front wheel grip insufficient
in bumpy curves.
Not enough rebound damping, or too
much spring preload
✓
Increase the rebound damping.
✓
Decrease the spring preload.
Rear suspension.
A
Rear suspension stroke is not
used to its capacity. Suspension
feels harsh. Traction not satisfac-
tory in bumpy curves.
Suspension hard in general or too
much compression damping, too
much spring pre-load.
✓
Decrease the compression
damping.
✓
Decrease the spring preload.
✓
Change to softer spring.
B
Suspension is bottoming, feels
soft during the entire wheel travel.
Spring too soft, compression damp-
ing too low.
✓
Increase the compression
damping.
✓
Change to harder spring.
C
Suspension is bottoming, feels
harsh and sags down too much
with the rider in the saddle.
Spring too soft or compression
damping too low.
✓
Increase the spring preload,
check ride height. 95 +- 5 mm.
✓
Change to harder spring if the
load is more than 100 mm.
✓
Increase compression damping.
D
Rear wheel jumps over small
bumps during deceleration or
when going downhill. Traction not
satisfactory in washboard curves.
Too much spring preload, as the
spring is probably too soft, will cause
the spring to extend too fast.
✓
Change to a harder spring in
order to achieve a balanced
position using less spring pre-
load.
✓
Check the static sag and
ride height.
E
Rear end kicks up over bumps
with sharp edges, but can handle
bumps with round edges.
Compression damping too hard.
✓
Decrease the compression
damping.
F
Rear end becomes too low in
series of bumps. Traction not
satisfactory in washboard type
curves or when decelerating on
washboard ground.
Rebound damping too slow.
✓
Decrease the rebound damping.
G
Rear end very unstable. Shock
does not respond to adjustments.
Shock damping is gone, caused of
low gas pressure, bad oil is used, or
components are broken in the shock
absorber. Service is needed.
✓
Gas filling required.
✓
Change shock oil.
✓
Repair or change the shock
absorber.