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Factory Offer.Before discussing the ideas of fork-rigidness and
adjustability one more concept is necessary to understand – how
suspension really works.There are 3 basic (and I mean basic) things that
effect the ride and the control that a suspension component will give
you:
Compression Preload: (The amount of preload pressure on the the
suspension device.) If you have little preload pressure then even the
slightest amount of load on the suspension device will cause it to
compress. A lot of preload will allow you to put an excessive amount of
load on the suspension device before it begins to compress. As an
example, think again of a motorcycle. If your rear shock has a lot of
preload, then your 200 pound friend can climb on the back and the bike
will not tend to sag too much. Too little preload and your 200 pound
friend will cause the rear of the bike to almost bottom- out.Brilliant
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Compression Damping: Think of this as the “time” it takes for the fork
to slow a downward force. If you have a lot of damping, then a downward
load will tend to effect the compression of the fork at a slower rate.
In other words, it will take longer to “bottom-out” the fork then if you
had only a little damping. This is very important when you go over a
big bump. If you have too much compression damping, then the fork will
not soak up the bump fast enough and you will get some of the jolt sent
up your arm through the handlebars. Too little compression damping, and
the fork will bottom out when you hit a pebble.Brilliant Quality nak oil seals Factory Offer.
Rebound Damping: Think of this as the inverse of compression damping.
This is the “time” it takes the fork to extend when it is released from a
load. Too much rebound damping and the fork will return to a fully
extended state too fast. Too little and it will not extend fast enough.
This is also important when you hit a big bump. If the rebound damping
is too high, then after the fork compresses it will fully extend and hit
its limits with a harsh “thud.” This is sometimes referred to as
“topping- out.” Too much rebound damping causes a front fork to act like
a pogo stick and less like a “shock-absorbsion” device.Brilliant
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Understanding these basic concepts will make the decision of whether or
not to buy a suspension device a bit easier. An elastomer-based fork
will generally only allow you to effect the compression damping and the
preload. If you put real hard elastomers in your fork, you are really
changing the preload, or the point at which the fork will compress under
load. You also effect the compression damping to some effect since the
stiffness of the elastomer will effect the time it takes to fully
compress the fork. With a fluid-based fork you can usually adjust these
parameters, and adjust them quite precisely. So, for adjustments, the
fluid- based forks are going to offer much more options. It is also
going to take longer to adjust the fluid-based forks than the
elastomer-forks but the result will be better. Since you also do not
have fluid in an elastomer-fork you do not need to deal with the
problems of leakage and fluid levels. Either way it is a wash.Brilliant
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