Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.1 6/24/83; site drux1.UUCP
Path: utzoo!watmath!clyde!burl!ulysses!mhuxr!mhuxt!houxm!mtuxo!drutx!drux1!msw
From: msw@drux1.UUCP (Mike Walpole)
Newsgroups: net.bicycle
Subject: Re: Purpose of Tire Guides...
Message-ID: <63@drux1.UUCP>
Date: Mon, 13-May-85 15:47:17 EDT
Article-I.D.: drux1.63
Posted: Mon May 13 15:47:17 1985
Date-Received: Tue, 14-May-85 20:34:31 EDT
Organization: AT&T Information Systems Laboratories, Denver
Lines: 16

>Does anyone know what the purpose is of the triangular-shaped tire guides
>which are attached to either side of the caliper arms on brakesets?  These
>tire guides are usually found on the more expensive brake sets.  Are the 
>guides supposed to aid with the insertion/centering of the wheels between
>the caliper arms?

The reason for the guides is simple.  Most of the high quality brakes are
used on racing bikes.  The reason for the guides on the brakes is to
facilitate wheel changes.  A good mechanic can change a rear wheel in
a race in 6 to 10 seconds.  Any thing longer than 10 seconds is considered
an all day wheel change acompanied by abusive language from the rider 
directed at the mechanic.  Centering of the wheels is acomplished at the rear
dropouts with set screws in the dropouts (Campy and Suntour dropouts have
these).

Mike Walpole