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WARNING:
Frequent inspection of your Scooter surf is important to your safety. Follow the Mechanical Safety
Check of this Manual before every ride. Periodic, more detailed inspection of your water Scooter surf 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 Scooter surf, how hard you use it and where you use it.
Because our Technical Team cannot track your use, you must take responsibility for periodically bringing your
Scooter Surf to our Technical Team for inspection and service. Our Technical Team will help you decide what
frequency of inspection and service is appropriate for how and where you use your Scooter surf. For your
safety, understanding and communication with our Technical Team, we urge you to read this Appendix in its
entirety. The materials used to make your Scooter Surf determine how and how frequently to inspect. Ignoring
this WARNING can lead to frame, or other component failure, which can result in serious injury or death.
17.3.
UNDERSTANDING MATERIALS:
PE-HD, PVC
it’s
an excellent material for building water Scooter surf frames. It has good characteristics, but in
high performance water Scooter Surf. The main factor driving this material is interest by Scooter Surf
enthusiasts in lighter Scooter Surf.
17.3.1.
Properties of this materials:
Please understand that there is no simple statement that can be made that characterizes the use of different
materials for water Scooter Surf. What is true is how the material chosen is applied is much more important
than the material alone. One must look at the way the Scooter Surf is designed, tested, manufactured,
Boardported along with the characteristics of the material rather than seeking a simplistic answer. Metals vary
widely in their resistance to corrosion. Steel must be protected, or rust will attack it. Aluminum quickly
develops an oxide film that protects the metal from further corrosion. Both are therefore quite resistant to
corrosion. Aluminum is not perfectly corrosion resistant, and particular care must be used where it contacts
other metals and galvanic corrosion can occur. Metals are comparatively ductile. Ductile means bending,
buckling, and stretching before breaking. Generally speaking, of the common water Scooter surf elements
building materials steel is the most ductile, followed by aluminum. Metals vary in density. Density is weight
per unit of material. Steel weighs 7.8 grams/cm3 (grams per cubic centimeter), , aluminum 2.75 grams/cm3.
Contrast these numbers with carbon fiber composite at 1.45 grams/cm3. Metals are subject to fatigue. With
enough cycles of use, at high enough loads, metals will eventually develop cracks that lead to failure. It is very
important that you read The basics
of metal fatigue below. Let’s
say you hit a curb, ditch, rock, car, another
cyclist or other object. At any speed above a fast walk, your body will continue to move forward, momentum
carrying you over the front of the Scooter Surf. You cannot and will not stay on the Scooter Surf, and what
happens to the frame, and other components is irrelevant to what happens to your body.
What should you expect from your frame? It depends on many complex factors, which is why we tell you that
crashworthiness cannot be a design criteria. With that important note, we can tell you that if the impact is
hard enough frame may be bent or buckled. Aluminum elements is less ductile, but you can expect to be bent
or buckled. Hit harder and the may be broken in tension. Hit harder and the top tube may be broken. The
relative ductility of metals and the lack of ductility of carbon fiber means that in a crash scenario you can
expect some bending or bucking in the metal but none in the carbon.
17.3.2.
Fatigue Is Not A Perfectly Predictable Science:
Fatigue is not a perfectly predictable science, but here are some general factors to help you and Technical
team determine how often your water Scooter surf should be inspected. The more you fit the
“shorten
product
