[CR]re: 69/70 white Raleigh Pro on ebay - 151 bcd

(Example: Production Builders:Pogliaghi)

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Date: Mon, 13 Sep 2004 08:31:36 -0400
To: classic list <Classicrendezvous@bikelist.org>
From: "Roy H. Drinkwater" <roydrink@ptd.net>
Subject: [CR]re: 69/70 white Raleigh Pro on ebay - 151 bcd

Jerry asked:
>Someone (Harvey Sachs?) stated that this is a 151 crank. How can you tell?

Position of the edge of the chainwheel bolt to the inside of the ring. 151 bcd has 4 ~ 5mm spacing, while 144 bcd has 1 ~2mm spacing. If you want, check out the difference at <http://www.bikecult.com/works/chainring.html>, there's even a 151 crank arm modified to take 144 rings.

Roy "more 151's than 144's" Drinkwater Lititz, PA