Bedienungsanleitung Marin Bikes (Seite 46 von 54) (Englisch)

780517

Zoom out

Zoom in

Vorherige Seite

1/54

Nächste Seite

If You Hit Something Or Have A Crash, What Can You Expect

From Your Carbon Fiber Bike?

Let’s say you hit a curb, ditch, rock, car, other cyclist or other object. At

any speed above a fast walk, your body will continue to move forward,

the momentum carrying you over the front of the bike. You cannot and

will not stay on the bike and what happens to the frame, fork and other

components is irrelevant to what happens to your body.

What should you expect from your carbon frame? It depends on many

complex factors. But we can tell you that if the impact is hard enough, the

fork or frame may be completely broken. Note the signicant difference

in behavior between carbon and metal. See Section 2. A, Understanding

metals in this Appendix. Even if the carbon frame was twice as strong as

a metal frame, once the carbon frame is overloaded it will not bend, it will

break completely.

Inspection of Composite Frame, Fork, and Components

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:

1. 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.

2. Bulging or deformed shape. If delamination occurs, the surface shape

carbon ber composite at 1.45 grams/cm3.

The composites with the best strength-to-weight ratios are made of carbon

ber in a matrix of epoxy plastic. The epoxy matrix bonds the carbon

bers together, transfers load to other bers, and provides a smooth outer

surface. The carbon bers are the “skeleton” that carries the load.

Why Are Composites Used?

Unlike metals, which have uniform properties in all directions (engineers

call this isotropic), carbon bers can be placed in specic orientations to

optimize the structure for particular loads. The choice of where to place

the carbon bers gives engineers a powerful tool to create strong, light

bicycles. Engineers may also orient bers to suit other goals such as

comfort and vibration damping.

Carbon ber composites are very corrosion resistant, much more so than

most metals.

Think about carbon ber or berglass boats.

Carbon ber materials have a very high strength-to-weight ratio.

What Are The Limits Of Composites?

Well designed “composite” or carbon ber bicycles and components have

long fatigue lives, usually better than their metal equivalents.

While fatigue life is an advantage of carbon ber, you must still regularly

inspect your carbon ber frame, fork, or components.

Carbon ber composites are not ductile. Once a carbon structure is

overloaded, it will not bend; it will break. At and near the break, there will

be rough, sharp edges and maybe delamination of carbon ber or carbon

ber fabric layers. There will be no bending, buckling, or stretching.

Missbrauch melden von Frage und/oder Antwort

Libble nimmt den Missbrauch seiner Dienste sehr ernst. Wir setzen uns dafür ein, derartige Missbrauchsfälle gemäß den Gesetzen Ihres Heimatlandes zu behandeln. Wenn Sie eine Meldung übermitteln, überprüfen wir Ihre Informationen und ergreifen entsprechende Maßnahmen. Wir melden uns nur dann wieder bei Ihnen, wenn wir weitere Einzelheiten wissen müssen oder weitere Informationen für Sie haben.

Marin Bikes Seite 46

Brauchen Sie Hilfe? Stellen Sie Ihre Frage.

Missbrauch melden von Frage und/oder Antwort

Art des Missbrauchs:

Forenregeln

Neu registrieren

Das Handbuch wird per E-Mail gesendet. Überprüfen Sie ihre E-Mail.

Ihre Frage wurde zu diesem Forum hinzugefügt

Info