SR Suntour RAIDON - Marin Bikes Understanding Composites

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Factors that lengthen product life:
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WARNING: Do not ride a bicycle or component with any crack,
bulge or dent, even a small one. Riding a cracked frame, fork or
compo nent could lead to complete failure, with risk of serious
injury or death.
B. Understanding Composites
All riders must understand a fundamental reality of composites. Composite
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What Are Composites?
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plastic, molded to form a shape. Carbon composites are light relative to
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MAY MAKE CREAKING NOISE AS YOU
RIDE.
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SIMPLE RULE 5 :
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the source of any
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is causing the noise
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promptly.
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Fatigue Is Not A Perfectly Predictable Science
Fatigue is not a perfectly predictable science, but here are some general
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Factors that shorten product life:
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What to look for:
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GROW AND GROW FAST.
Think about the crack as forming a
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only become more dangerous.
SIMPLE RULE 1 :
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the part.
 CORROSSION SPEEDS DAMAGE.
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are in a corrosive environment. Think
about the corrosive solution as further
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SIMPLE RULE 2 :
Clean your bike,
lubricate your bike,
protect your bike from
salt, remove any salt as
soon as you can.
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CAN OCCUR NEAR A CRACK.
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that a crack exists.
SIMPLE RULE 3 :
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any staining to see if it is
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GOUGES, DENTS OR SCORING
CREATE STARTING POINTS FOR
CRACKS.
Think about the cut surface as a focal
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the scored line.
SIMPLE RULE 4 :
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or score any surface.
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attention to this area or
replace the part.
The basics of metal fatigue
Common sense tells us that nothing that is used lasts forever. The more
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you use it in, the shorter its life.
Fatigue is the term used to describe accumulated damage to a part caused
by repeated loading. To cause fatigue damage, the load the part receives
must be great enough. A crude, often-used example is bending a paper
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bicycle in a garage does not fatigue. Fatigue happens only through use.
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a crack forms in a highly stressed area. As the load is repeatedly applied,
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and immediate failure of the part.
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