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From: kenh@tekcbi.UUCP (Ken Hillen)
Newsgroups: net.bicycle
Subject: Re: Theft Resistance of U-shaped bicycle locks (QUERY)
Message-ID: <259@tekcbi.UUCP>
Date: Thu, 27-Jun-85 03:57:10 EDT
Article-I.D.: tekcbi.259
Posted: Thu Jun 27 03:57:10 1985
Date-Received: Fri, 28-Jun-85 01:36:32 EDT
References: <1468@bbncca.ARPA>
Reply-To: kenh@tekcbi.UUCP (Ken Hillen)
Organization: Tektronix, Beaverton OR
Lines: 44
Summary: 

In article <1468@bbncca.ARPA> slipson@bbncca.ARPA (Samuel R. Lipson) writes:
>
>	I'd  like to hear from people who have had bicycles stolen due
>to the failure of their  "high-security"  (Citadel/  Kryptonite  type)
>lock, and not the "immovable object" your bike was locked to.
>
>	I'm not sure whether the Kryptonite/Citadel story is hype, and
>I'd like to find out.  It certainly appears it would be harder to  use
>bolt-cutters  on one of these than a chain or cable, but I have a hard
>time believing they're only succeptable to "200 lbs of cutting/welding
>equipment", as some of the advertising suggests.
>
>	I've  been  told  (by my local bicycle "entrepreneurs") that a
>Kryptonite lock can be shattered by  applying  dry  ice  [did  I  just
>encourage  some would be bicycle thief?].  Does this only apply to the
>dark colored ones on sunny days (i.e. temperature difference),  or  is
>it a general characteristic of "hardened steel"?
>
>	My  local  bike  shops swear by the Kryptonite locks, but I've
>known people who think the Citadel is the only one worth  using.   Are
>these  profit/religion  motivated people, or is there some fact behind
>their opinions?
>
>	General comments on  bicycle  (and  "fixed"  accessory)  theft
>prevention  are  welcomed.   (Using  typical  outdoor bicycle racks or
>typical city immovable object -- indoor/controlled  environment  makes
>the problem less difficult.)
>
>	I will post a summary.
>
>	--Sam Lipson
>
>	{decvax, ihnp4}!bbnccv!slipson

A friend of mine once commented (as he was staring at the Kryptonite lock
strapped to my rear rack) that all bicycles are destined to weigh 50 lbs.
A 20 lb. bike needs a 30 lb. lock, a 30 lb. bike needs a 20 lb lock, etc.

My solution is to keep my bike in my office, the lock is for real
emergencies when I CAN'T talk the bike indoors.

Ken Hillen
Tektronix, Inc.
Beaverton, OR