Re: [CR] Cotter direction

(Example: Component Manufacturers)

Date: Sat, 15 May 2010 18:12:36 -0700 (PDT)
From: "Ted Baer" <wickedsky@sbcglobal.net>
To: CR List <classicrendezvous@bikelist.org>, beandk@rcn.com
In-Reply-To: <PLEDLMNNAFGCJOAIICLBKEIHEOAA.beandk@rcn.com>
Subject: Re: [CR] Cotter direction


Haven't been on a cotter-crank equipped bike in a while...heck, haven't been on a bike in years come to think of it.  But I would say that if one were riding and his right hand crank pointed to the 3 o'clock position as viewed by an innocent bystander to his right, the head or the top of the shaft should be showing/visible to the rider whilst the nut would appear to be hanging (or attached) below.  The cotter for the opposite (left) side would be installed in the opposing direction so the head of the cotter would be on top in the 9 o'clock position when viewed from the right.

Ted E. Baer
"Heads up, Nuts below"
Palo Alto, CA


--- On Sat, 5/15/10, David Bean wrote:


From: David Bean <beandk@rcn.com> Subject: [CR] Cotter direction To: "CR List" <classicrendezvous@bikelist.org> Date: Saturday, May 15, 2010, 12:20 AM

I'm not sure I buy the cotter direction reasoning, at least its importance, but when assembling cranks on roadsters, I have always but them in with the threaded side "leading," as this leads to fewer problems with pants cuffs. That little bit of thread and the corners of the nut can easily snag trousers.

David Bean
Arlington, MA USA
beandk at are-see-enn dot com