[CR]Bates Cantiflex build


Example: Events:Cirque du Cyclisme:2002

From: "Thomas Rawson" <twrawson@worldnet.att.net>
To: <Classicrendezvous@bikelist.org>, <Raoul.L.Delmare@worldnet.att.net>
Date: Sat, 21 Jun 2003 15:36:00 -0700
Subject: [CR]Bates Cantiflex build

Raoul, I hope you do decide to build it that way (1x10). Its a project Ive also thought about. My bet on the ten speed chain is that this is probably not a problem with regard to TA chainring thickness. When the ten speed system came out a few years ago everyone assumed that "everything" got narrower to accomodate a tenth cog in the 130 rear spacing. In fact I took apart a ten speed chain and measured every surface i could lay my calipers on. The clever thing that campy did was they made space for the tenth cog by reducing the "air" in the system. The cog teeth and chainring teeth are same thickness as nine. They narrowed the spacers on the cassette moved one chainring closer to the other to reduce the gap and the clever thing they did with the chain is reduce the outside width. The big deal is the pins that hold the chain plates and bushings together. Notice they are flat ended and do not protrude beyond the plates (outside to outside). The inner space between plates is almost identical to nine speed.

I worry about 1st and 10th cog angles as you do.

Go try it.

Tom Rawson
Oakland, CA