[CR]Track cog questions

(Example: Books)

From: Tom Sanders <tsan7759142@sbcglobal.net>
To: <classicrendezvous@bikelist.org>
Date: Wed, 3 Oct 2007 02:12:33 -0400
Thread-Index: AcgFhGIBdSoASHjJRdKNnl1HiHqErg==
Subject: [CR]Track cog questions

I am a bit bewildered by the range of options on track cogs. The prices seem all over the place, from in the $ teens to over a hundred bucks for some with things like Titanium oxide coatings. This does not seem to be a Ti cog, rather a coating of some sort on it. Steel or aluminum?

I gather the steel must be a heck of a lot more durable. It doesn't seem like you'd save a lot of weight on a single cog by buying a more exotic metal in one and the price would seem to escalate sharply to do so.

Perhaps some folks more familiar with them could run through the options and evaluate what is worth while and what is not in them?

Do Dura Ace cogs fit on Campy hubs?

Are there drillium cogs?

Thanks all,

Tom Sanders

Lansing, MI USA