IIRC the park tool ruler measures 4 sizes of cotter pins and sutherlands gives specs for specific cranks and their corresponding pin size peace sarahgibsonkansascity
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From: Jerome & Elizabeth Moos <jerrymoos@sbcglobal.net> To: Simon PJ <simonpj@mac.com>, classicrendezvous@bikelist.org Subject: Re: [CR]Cotterpin blues Date: Sun, 28 Jan 2007 10:27:08 -0800 (PST)
Well, there are cotter pins of at least three different dimensions, for English, French and Italian cranks respectively. So you must be sure to get the proper ones. There may also have been specific manufacturers who used cotter dimensions different from national standards.
Regards,
Jerry Moos Big Spring, TX
Simon PJ <simonpj@mac.com> wrote: I have to admit to being impatient and ham-fisted when it comes to cotterpins.
I currently have some cranks that I need to re-install and am having problems because the cotterpins that I have do not fit well. I did tell the people from whom I ordered the cotterpins the types of cranks that I needed them for, but seem to have ended up with ones which are a little too large. Or maybe it's my installation technique?
I would be very grateful for advice as to which size of cotterpins I should be looking for. Are there types of cotterpin that are better than others?
The cranks that I need them for are a Chater Lea set, and couple of different Williams sets.
Thanks,
Wyndham Pulman-Jones
Girton, Cambs., UK.