Cannondale Synapse Carbon Owner's Manual page 75

Composite frame, fork, and
Component inspection
Cracks:
Inspect for cracks, broken, or splintered areas. Any
crack is serious. Do not ride any bicycle or component
that has a crack of any size.
delamination:
Delamination is serious damage. Composites are
made from layers of fabric. Delamination means that
the layers of fabric are no longer bonded together.
Do not ride any bicycle or component that has any
delamination. These are some delamination clues:
• A cloudy or white area. This kind of area looks
different from the ordinary undamaged areas.
Undamaged areas will look glassy, shiny, or "deep, "
as if one was looking into a clear liquid. Delaminated
areas will look opaque and cloudy.
•Bulging or deformed shape. If delamination occurs,
the surface shape may change. The surface may have
a bump, a bulge, soft spot, or not be smooth and fair.
•A difference in sound when tapping the surface.
If you gently tap the surface of an undamaged
damage caused by a handlebar
rotating and striking the top tube is
common. the resulting impact cracks
and breaks the top tube.
this is not a warranty.
the frame is not safe to ride.
any impact or crash damage can
produce serious damage to the frame.
this chainstay was cracked in a crash.
this is not a warranty.
the frame is not safe to ride.
composite you will hear a consistent sound, usually
a hard, sharp sound. If you then tap a delaminated
area, you will hear a different sound, usually duller,
less sharp.
Unusual noises:
Either a crack or delamination can cause creaking
noises while riding. Think about such a noise as a
serious warning signal. A well maintained bicycle
will be very quiet and free of creaks and squeaks.
Investigate and find the source of any noise. It may
not be a crack or delamination, but whatever is
causing the noise must be fixed before riding.
WaRninG
do not Ride a fRame oR foRk With any
delamination oR CRaCk. if yoU Ride a
delaminated oR CRaCked fRame/foRk/
ComPonent it may ComPletely BReak
aPaRt With Risk of aCCident, seRioUs
inJURy, PaRalysis oR death.
73