Re: [CR]Fw: Crank Pins-- Contest

(Example: Bike Shops)

In-Reply-To: <6.2.3.4.0.20051130073728.04d4a180@pop.earthlink.net>
References: <012801c5ec05$dff90e00$0200a8c0@D8XCLL51> <02a101c5f556$7a7381f0$0200a8c0@D8XCLL51> <p0623090abfb2c18f7cf6@[10.0.1.21]>
From: "Bob Reid" <robertrreid@tiscali.co.uk>
Subject: Re: [CR]Fw: Crank Pins-- Contest
Date: Thu, 1 Dec 2005 00:28:20 +0000
To: CR List <Classicrendezvous@bikelist.org>


On 30 Nov 2005, at 20:02, Mark Stonich wrote:

Even then, you would never get the British, Italians & French to agree on a common angle. The Brits would want 9.57 degrees because that's what Kirkpatrik Macmillan used. The Italians would use 6 degrees figuring that only their superior machining and metallurgy could withstand the higher stresses. And to prevent anyone from using inferior (ie. non-Italian) cotters with their cranks. The French would use 9 degrees because 9 deg. = 10 Grads and they're.. well, French.

------

One important omission there from that list of cultural stereotypes

"And in the U.S.A. they would analyse it to death, produce graphs, charts, empirical data and lots of proven "facts" designed to ward off the "uneducated" (despite cottered cranks in that form being used successfully since before the turn of the 1900s) and invent one-piece cranks. Yep so impressed were the Brits, Italians and French by the design that they all rushed to abandon archaic cotters." :-)

Next you'll be telling us that theoretical best shape for a chainwheel is oval !

Bob Reid Stonehaven Scotland.

http;//www.flying-scot.co.uk