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- Path: sparky!uunet!cbmvax!grr
- From: grr@cbmvax.commodore.com (George Robbins)
- Newsgroups: rec.skate
- Subject: Re: In-line skate terminology
- Message-ID: <38196@cbmvax.commodore.com>
- Date: 30 Dec 92 01:11:43 GMT
- References: <1992Dec29.042346.20453@serval.net.wsu.edu> <C01Apx.Lt9@csn.org>
- Reply-To: grr@cbmvax.commodore.com (George Robbins)
- Distribution: na
- Organization: Commodore, West Chester, PA
- Lines: 34
-
- In article <C01Apx.Lt9@csn.org> pae@teal.csn.org (Phil Earnhardt) writes:
- > >What does this mean?
- >
- > A number followed by an "A" is a durometer, or rebound, rating. It's
- > based on a 0-100 scale where 100 would give complete rebound and 0
- > would give none.
-
- Uh Phil... Durometer is simply "hardness", i.e. the distance the
- indicator plunger will depress the material with a given spring
- force.
-
- Rebound would refer to the ability of the material to revert to
- it's original dimension after the force is removed (elasticity)
- and to some degree the internal friction/damping/viscosity.
-
- Simply put, rebound == bounce. High robound is generally a good
- thing, since the energy absorbed from impact/vibration is returned,
- however various additives might be needed for durability which would
- detract from the rebound.
-
- > Typically, for rougher road surfaces, you'd like to use a lower
- > durometer number. Unfortunatly, low duro wheels will usually wear out
- > much faster. 74A is the softest available wheel. 78A is a pretty good
- > all-around wheel. 82A gives a bit too harsh a ride for my taste. There
- > are 85A wheels; they should probably be used only indoors or on very
- > smooth outdoor surfaces.
-
- this is still correct anyway...
-
-
- --
- George Robbins - now working for, work: to be avoided at all costs...
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