Specialized Roubaix Comp Road Manual De Instrucciones página 51

• SOME CRACKS (particularly larger ones) MAY MAKE
CREAKING NOISE AS YOU RIDE. Think about such a noise
as a serious warning signal. Note that a well-maintained
bicycle will be very quiet and free of creaks and squeaks.
In most cases a fatigue crack is not a defect. It is a sign that the part has been
worn out, a sign the part has reached the end of its useful life. When your car
tires wear down to the point that the tread bars are contacting the road, those
tires are not defective. Those tires are worn out and the tread bar says "time
for replacement." When a metal part shows a fatigue crack, it is worn out. The
crack says "time for replacement."
Fatigue Is Not A Perfectly Predictable Science
Fatigue is not a perfectly predictable science, but here are some general
factors to help you and your dealer determine how often your bicycle should be
inspected. The more you fit the "shorten product life" profile, the more frequent
your need to inspect. The more you fit the "lengthen product life" profile, the
less frequent your need to inspect.
Factors that shorten product life:
„ Hard, harsh riding style
„ "Hits", crashes, jumps, other "shots" to the bike
„ High mileage
„ Higher body weight
„ Stronger, more fit, more aggressive rider
„ Corrosive environment (wet, salt air, winter road salt,
accumulated sweat)
„ Presence of abrasive mud, dirt, sand, soil in riding environment
Factors that lengthen product life:
„ Smooth, fluid riding style
„ No "hits", crashes, jumps, other "shots" to the bike
„ Low mileage
„ Lower body weight
„ Less aggressive rider
„ Non-corrosive environment (dry, salt-free air)
Clean riding environment
„
WARNING: Do not ride a bicycle or component with any crack,
bulge or dent, even a small one. Riding a cracked frame, fork or
component could lead to complete failure, with risk of serious
injury or death.
All riders must understand a fundamental reality of composites. Composite
materials constructed of carbon fibers are strong and light, but when crashed or
overloaded, carbon fibers do not bend, they break.
What Are Composites?
The term "composites" refers to the fact that a part or parts are made up of
B. Understanding composites
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SIMPLE RULE 5 : Investigate
and find the source of any noise.
It may not a be a crack, but
whatever is causing the noise
should be fixed promptly.