Re: [CR]Re: Stronglight extractor thread

Example: Framebuilding

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From: Chuck Schmidt <>
Subject: Re: [CR]Re: Stronglight extractor thread
Date: Fri, 12 May 2006 13:37:34 -0700

John Thompson wrote:
> Chuck Schmidt wrote:
>> Jerome & Elizabeth Moos wrote:
>>> (cut) This is aggravated by the fact that Stronglight cranks are
>>> softer than Campy, preventing the frequency of brittle cracking seen
>>> with Campy, but making Stronglight more likely to seize to the crank
>>> axle.
>> I've never seen any evidence that Stronglight cranks are made of a
>> softer alloy than Campagnolo cranks. Any published data?
> I don't know of any published data, and nothing on arms, but we (Trek)
> did some hardness testing on chainrings and found Stronglight rings to
> be the hardest, Campy second, with Shimano and Sugino a close
> third, and
> TA the softest of the lot. This was done back in the early 80s, so
> things may well have changed since then.

I remember a Campagnolo Neutral Support tech guy during the '84 LA Olympics showing me how a Campagnolo chainring could scratch a Shimano chainring, but a Shimano ring couldn't scratch a Campagnolo ring.

Chuck Schmidt
South Pasadena, Southern California