Re: [Classicrendezvous] Old Motobecane mixte


Example: Production Builders:Frejus

Date: Thu, 23 Mar 2000 12:44:36 -0800
To: Jerry & Liz Moos <moos@penn.com>, Karl P Frantz <karl.frantz@juno.com>
From: Joseph Bender-Zanoni <jfbender@umich.edu>
Subject: Re: [Classicrendezvous] Old Motobecane mixte
Cc: classicrendezvous@bikelist.org
In-Reply-To: <3A1D1BC4.CC088151@penn.com>
References: <20001122.222137.-30161.1.Karl.Frantz@juno.com>


MeasuringAt 08:29 AM 11/23/00 -0500, Jerry & Liz Moos wrote:
> TA Cyclotourist, Zeus Competition, Some Nervar models, and even
>Lambert chainrings used this pattern. However, these cranks usually had
>different bolt circles where the inner chainring bolted to the outer one, so
>you could switch a pair of rings from one crank to another, but couldn't use
>an inner of one brand with a different outer. The inner bolt circle of the
>Stronglight 49 is 122mm, same as the mod 93 and 104. I'd be interested to
>know what the inner circle of the Nervar rings is. Perhaps 128mm like the
>Nervar Star?

Measuring a Nervar of this type with the small 5 hole pattern I get 128 (well 129 but we know I measured wrong) Also this pattern goes back at least to the turn of the centurey and fits, among many others, BSA cottered cranks.

Joe