Re: [CR] Nervar Crank Questions


Example: Framebuilding:Restoration

Date: Mon, 25 Feb 2008 09:55:05 -0800 (PST)
From: Fred Rednor <fred_rednor@yahoo.com>
Subject: Re: [CR] Nervar Crank Questions
To: classicrendezvous@bikelist.org
In-Reply-To: <E1JTh2q-0003PX-3C@elasmtp-junco.atl.sa.earthlink.net>


>> I think there is (still) an awful lot of confusion out >> there regarding Campagnolo BBs. Prior to 1993, Campagnolo >> used JIS-tapered spindles, just like virtually everyone >> else did. > > Greg, > A few minutes with an assortment of modern JIS and old > Campi cranks and spindles will show you that if the older > Campis weren't ISO they sure as heck weren't JIS either. > What may be confusing you is that some of the better old > Japanese cranks, like Sugino Mighty, were Campi compatible > instead of JIS. Come to think of it the Sugino 75 Track > crank still is.

Right. If you measure across the flats at the end of a vintage Campagnolo crank spindle, the measurement will be 12.7mm. If you take the same measurement on a JIS spindle, it will be 12.9mm.

If you take the same measurement on an ISO spindle, it will be slightly less than 12.7mm - i.e. something like 12.65mm. At least that's what I recall from measuring spindles the last time we had this discussion, which couldn't have been more than a couple of months ago. Cheers, Fred Rednor - Arlington, Virginia (USA)

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