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From: blanken@uiucdcs.CS.UIUC.EDU
Newsgroups: net.bicycle
Subject: Re: Orphaned Response
Message-ID: <38200057@uiucdcs>
Date: Fri, 8-Nov-85 15:01:00 EST
Article-I.D.: uiucdcs.38200057
Posted: Fri Nov  8 15:01:00 1985
Date-Received: Sun, 10-Nov-85 10:08:15 EST
References: <10700003@hpltca.UUCP>
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Nf-ID: #R:hpltca.UUCP:10700003:uiucdcs:38200057:000:621
Nf-From: uiucdcs.CS.UIUC.EDU!blanken    Nov  8 14:01:00 1985


  Okay.  Let's get some background first.  The metal rollers were the 
first edition.  They were constructed with the idea of durability.  It
wasn't until after the advent of tough polymers that someone got the 
bright idea to construct them with PVC.  The motivation was to reduce cost
for the consumer.

Tangible differences?(besides cost?).  Smoother ride with less noise.

Some advocates of Alloy drums might also be inclined to say that they
produce a quality ride when a turbo fan is added for resistance, better
than PVC.  The effect is the same, only the alloy is much smoother.

Eric Blankenburg
U of I, Urbana