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Appendix A
The lifespan of your bike and its components
!
1. Nothing Lasts Forever, Including Your Bike.
!
When the useful life of your bike or its components is over, continued use is hazardous.
Every bicycle and its component parts have a finite, limited useful life. The length of that life will vary with the
construction and materials used in the frame and components; the maintenance and care the frame and
components receive over their life; and the type and amount of use to which the frame and components are
subjected. Use in competitive events, trick riding, ramp riding, jumping, aggressive riding, riding on severe
terrain, riding in severe climates, riding with heavy loads, commercial activities and other types of
non-standard use can dramatically shorten the life of the frame and components. Any one or a combination
of these conditions may result in an unpredictable failure.
All aspects of use being identical, lightweight bicycles and their components will usually have a shorter life
than heavier bicycles and their components. In selecting a lightweight bicycle or components you are
making a tradeoff, favoring the higher performance that comes with lighter weight over longevity. So, If you
choose lightweight, high performance equipment, be sure to have it inspected frequently.
You should have your bicycle and its components checked periodically by your dealer for indicators of
stress and/or potential failure, including cracks, deformation, corrosion, paint peeling, dents, and any other
indicators of potential problems, inappropriate use or abuse. These are important safety checks and very
important to help prevent accidents, bodily injury to the rider and shortened product life.
2. Perspective
Today’s high-performance bicycles require frequent and careful inspection and service. In this Appendix
we try to explain some underlying material science basics and how they relate to your bicycle. We discuss
some of the trade-offs made in designing your bicycle and what you can expect from your bicycle; and we
provide important, basic guidelines on how to maintain and inspect it. We cannot teach you everything you
need to know to properly inspect and service your bicycle; and that is why we repeatedly urge you to take
your bicycle to your dealer for professional care and attention.
WARNING: Frequent inspection of your bike is important to your safety. Follow the Mechanical
Safety Check in Section 1.C of this Manual before every ride.
Periodic, more detailed inspection of your bicycle is important. How often this more detailed
inspection is needed depends upon you.
You, the rider/owner, have control and knowledge of how often you use your bike, how hard you
use it and where you use it. Because your dealer cannot track your use, you must take
responsibility for periodically bringing your bike to your dealer for inspection and service. Your
dealer will help you decide what frequency of inspection and service is appropriate for how and
where you use your bike.
For your safety, understanding and communication with your dealer, we urge you to read this
Appendix in its entirety. The materials used to make your bike determine how and how frequently to
inspect.
Ignoring this WARNING can lead to frame, fork or other component failure, which can result in
serious injury or death.
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