[CR]PMP cranks (was ???????)


Example: Events:Cirque du Cyclisme:2004

From: Tom Dalton <tom_s_dalton@yahoo.com>
To: Kenneth Wood <Wood_23793@msn.com>
Cc: classicrendezvous@bikelist.org
In-Reply-To: <OE21IJt1WkIBWIbtpLC00008c07@hotmail.com>
Subject: [CR]PMP cranks (was ???????)
Date: Fri, 27 Sep 2002 06:40:24 -0700 (PDT)

The clamp on the Cinelli may have been distorted by using it with a 25.4 bar (nominal size of cheaper SR bars). Of course, that's a huge difference from the Cinelli standard 26.4 mm, and I have to wonder if it would clamp at all. Perhaps it relly is some odd Cinelli with a smaller clamp. The cranks sound like PMPs. They are very odd, and I have no idea what the thinking is behind them. If the pedal axle is 170mm from the BB axle, the leverage is what it is, no matter how indirect the path of the arm. Can anyone explain these cranks for the list? Tom Dalton Bethlehem, PA Kenneth Wood wrote:Well, I hope the third time is a charm! This is the third time I've had to register. I have some how gotten booted out twice. To my knowledge I haven't broken any rules; something to with the electronic/systems side.

Anyhow, I have the following questions:

1. Has the Cinelli standard clamp size always been 26.4? I have an old logo 1A that appears to have a smaller clamp size. The stem came on an old Peugeot track bike with a Sakae bars that have a clamp diameter of approximately 25 cm (likely 25.2) with my inexpensive calipers. Could the odd size stem clamp be a French thing?

2. If anyone else has a Peugeot track bike of approximately late 60's or very early 70's, what components does it have on it (group, pedals, stem, bars, etc.) and what kind of tubing is it? Mine has Record Pista, Cinelli stem, no-name seat post, and a non original Turbo-copy (cheap) saddle. Please contact me off-line.

3. About 12 years ago, my wife and I were in England for a friend's wedding. Of course I went into every bike shop I could find. I some rather interesting cranksets in these shops the had crank arms with a 90 degree bend in them about 2-3 inches (about 5-7.5 cm) from the center of the crank/bottom bracket spindle. Where/are these used for time trailing? Is the thought behind the design to allow the rider more leverage? Where they designed by an orthopedic surgeon to add to business?

Thanks,

Ken Wood
Port Charlotte, FL